Best Air Purifier 2021 | All about Air Purifiers (Reviews & Buying Guide)

best air purifier 2021

Pollution is continuously increasing in today’s world, and with it, airborne illnesses are too increasing. With all the industries, new vehicles, and burning of plastic, air quality has drastically reduced to the extent that people have trouble breathing. Worry does not solve the problem, technology does, and it has. In this pandemic every one curious about indoor air quality and the most common question these days what is the best air purifier 2021?

Precisely, an air purifier uses a series of filters. These filters suck in air. After cleaning all pollutants and odors, an Air purifier produces clean air, essential for healthy living. There are many types of air purifiers. In this detailed review, I have included each one of them, including their pros and cons.

Our Top Picks

best air purifier 2021 review policy

List of Top 8 Best Air Purifiers 2021

Table of Contents show
Image Product Details   Price
backpac Blueair Classic 680i Best for large room
Pre-filter, True HEPA, Activated Coconut Carbon
Coverage:
698ft²
Check Price
germ_guardian_AC4825E-removebg-preview GermGuardian AC4825 Best for small room and offices
Pre-filter, True HEPA, UV-C Sanitizer
Coverage:
167 ft²
Check Price
cordlessblower Levoit LV-H132 Recommended for bedroom
Pre-filter, True HEPA, Activated Carbon
Coverage:
129ft²
Check Price
cordlessblower Alen Breathe T500 Best for allergies
Pre-filter, Medical Grade H13, Activated Carbon
Coverage:
500ft²
Check Price
cordlessblower Levoit Core 300 Best for smoke
Pre-filter, H13 True HEPA, Activated Carbon
Coverage:
219ft²
Check Price
cordlessblower Dyson Pure Hot + Cool
HP-04
Best for large spaces
Sealed True HEPA, Activated Carbon
Coverage: Large room
Check Price
cordlessblower Levoit Vista 200 Best for bedroom
Pre-filter, True HEPA, Activated Carbon
Coverage:
161ft²
Check Price
cordlessblower TaoTronics HEPA H13 Ideal for large room and offices
Pre-filter, True HEPA, Activated Carbon
Coverage: 322.9ft²
Check Price

1- Blueair Classic 680i – Best Air Purifier for Home

best air purifier 2021Blueair is a Sweden based company that makes quality air purifiers to aid people in breathing. With its products sold in over fifty countries, this company has proven to be very popular.

The Blueair Classic 680i has proven itself to be the best air purifier in 2021. Galvanized steel housing is used in the build. You get an exceptionally well-built air cleaner considering the robust casing found in this model.

Key Features

  • Amazing HEPA silent technology.
  • Electrostatic attraction catch the pollutants like magnet.
  • Real time air quality monitor with Blueair Friend app.
  • Easy control panel with 3 variable fan speeds.
  • Filter replacement indicator.

Pros

  • Best Blueair performance rating
  • Above-average airflow with high CADR and ACH
  • High-end premium features
  • Reduced noise level
  • Extensive room coverage up to 698 sq. ft.
  • Has a 5-year warranty

Cons

  • Price is little bit high

Blueair Classic 680i Review

 360* Air Circulation 

Thankfully, the Classic 680i filters air at intervals of twelve minutes, which is an industry-endorsed feature. Air distribution is another crucial factor when buying a purifier. With the 360* air circulation present in this model, the air would get clean in a short time, whether it is your room or an office.

 Room Coverage and Vents 

This air purifier gives the best results in a room measuring no more than 775 ft. The top and sides have an air outlet, while the bottom and both sides have an inlet. Multiple vents included in this air purifier increase its overall efficiency. Let us talk about the attributes you get in this excellent purifier! 

 Filters 

The advanced dual protection filters put an end to all airborne bacteria, various kinds of viruses. Allergy causing elements including dust, pollen, and strong odors, are also removed to breathe without difficulty. A HEPA silent technology found in this air cleaner makes use of low-pressure filters to make this less noisy and more energy-efficient.

 Features 

You can control this purifier through an app. Settings like night mode, led brightness, timer, a 3-speed control, and automatic sensors are available in this device controllable with an application. The measured sound level is 32-36 decibels, which is relatively low.

 Warranty 

You have a 60 days return period if this air purifier does not meet your expectations. Also, a one-year warranty is available for this device.

Summary

The Blueair Classic 680i has impressed us with its performance and specs. We are delighted with the high-end features it provides considering its price. This device can prove to be life-changing for you if you’re allergic to dust, animals, or are asthmatic. Due to the stream of features we liked in this device, we call it “the best feature-rich air purifier”

2. GermGuardian AC4825 – Best Air Purifier for Bedroom

Best air purifier 2021GermGuardian specializes in producing devices for a safe and healthy life. They have a vast range of products, ranging from air sanitizer, humidifiers to air the best air purifiers in 2021. The Germguardian AC4825 is a budget series air cleaner that has gained popularity in recent times. You can get this purifier for under 100$.

Key Features

  • 4 in 1 air purifier for home with True HEPA filter.
  • Built-in UV-C light to deal with airborne bacteria and viruses.
  • Activated charcoal filter to eliminate bad odor of pets and smoke.
  • Super quiet operation at lowest speed for better sleep.
  • Highly trusted and recommended due to best seller brand at Amazon.

Pros

  • Has a 3-year warranty
  • Good value for money
  • True HEPA filter and UV light

Cons

  • Noisy at high speeds
  • Lacks modern features

GermGuradian AC4825 Review

 Air Flow 

This device is quite durable, keeping in mind that it is build using plastic. The air vents’ location can become a bit of a nuisance when placing them close to corners. This model sucks air inside from the rear and, after cleansing it, outputs it through a front vent. However, you would not want to place it in corners, resulting in less efficiency and decreases air quality.

 Control Panel 

On top of this cleaner, there is a little control panel available to adjust the settings. There are a UV light button, a power button, three fan speed control options, and a filter replacement warning LED light. The filter needs replacement every six months or so if used continuously for 24 hours.

 Filters 

There are three filters in this cleaner. A pre-filter is present, which reduces odors from smoke and blocks large particles. A HEPA filter traps microscopic allergens and dust particles up to 99%, down to 0.3 microns. A UVC light significantly strengthens its ability to kill molds and viruses.

 Energy Saving 

This cleaner is rated at 53 watts, making it fall into the category of energy star. You do not have to deal with massive bills at the year’s end when using this purifier. The recommended room area is 163 sq. feet, making it best suitable for small rooms.

 Sound Level 

However, we found the noise level much louder than other air cleaners, even at the lowest speed. Forty decibels at the lowest rate troubles your sleep, so we do not recommend using this in your room or office.

Moreover, a 30 day return period is available while the warranty goes up to three years.

Summary

In our opinion, this is the best air purifier for small rooms. Suppose you are on a constricted budget but want an above-average air cleaner. In that case, we recommend this purifier without a doubt.

3. Levoit LV-H132 – Best Air Purifier for Allergies

best air purifiers 2021The Levoit LV-H132 falls into the group of compact air cleaners. Surprisingly, this particular model has benefited from holding the Amazon best-selling air purifier tag in 2018-2020!

Key Features

  • 100% ozone free air purifier ideal for asthma sufferers.
  • Premium 3 stage filtration system with True HEPA and effective Activated Carbon filter.
  • Ultra silent operation working on 25dB noise level.
  • In a small to medium size room refresh air 3-4 times in an hour.
  • Built-in filter replacement indicator.

Pros

  • Minimal design
  • Quiet operation
  • Well built
  • Good performance

Cons

  • Price is little bit high
  • Does not have auto-shutoff

Levoit LV-H132 Review

 Features 

When searching for a feature balanced purifier under $150, the LV-H132 provides you with the bang for the buck. The all-time famous Much to our excitement, the company has included a true HEPA filter in this device, a feature you typically only get to see in higher-end cleaners.

 Design 

Previous models of Levoit usually came in a square-shaped design. With this model, the design resembles much like a cylinder. The pre-filter is present right at the bottom. Air enters from the bottom, passing through multiple filters while finally coming out from the top. You would find basic controls on the top of this air cleaner.

 Filters 

Now coming to the multiple filters on this purifier, let us give you some details about them. The pre-filter acts as a barrier, filtering large particles like dust, pet dander, and mold. This best air purifier has a beneficial True HEPA filter. This filter can reduce up to 99% of viruses, pollen, and bacteria down to 0.3 microns.

We believe the HEPA filter found in this smoker is better than most other companies filters out there. The last filter, an Activated Carbon one, reduces odors and animal smells. This filter is helpful if you have a pet in your home.

Considering it is a certified True HEPA, this cleaner is undoubtedly one of the best air purifiers in 2021. You can buy a new filter at a minimal price of 26$. This price is less when compared with the filters of other companies.

 Room coverage and noise level 

This device can clean a room measuring up to 129 sq ft. It is suited best for use in small spaces or your bedroom. The LV-H132 would clean at intervals of 30 minutes.

Noise is relatively low, around 36 decibels at the lowest and 50 decibels at the highest speed.

Summary

If you ask us, we proudly give this device the title of the quietest air purifier. If you are a sleepyhead looking for something silent and compact, you should consider using this model in your bedroom. Also, this is the best air purifier for the home.

4. Alen Breathe T500 – Best Air Purifier for Office

best air purifier for homeEverybody wants a device that stands out from the rest! The Alen T500 looks like a tower(yes, you heard that right, a tower!). This model is a low-mid budget air cleaner, providing balanced yet rich features.

Key Features

  • 5 stage filtration system.
  • 4 in 1 multi function with Auto mode, sleep mode, timer and negative ion mode.
  • 4 variable fan speeds according to requirements.
  • Eco-friendly and safe for both kids and pets.
  • Built-in smart sensor and real time display.

Pros

  • Lifetime warranty
  • Compact design
  • Energy star rating

Cons

  • Low CADR rating
  • Low fan power
  • Lacks TRUE HEPA filter
  • Expensive replacement filter

Alen T500 Review

 Features 

The T500 sucks air in from the rear; after passing it through the filters, it comes out from the front. LCD controls are on the top with minimal functions. We did not like these buttons since they are a bit hard to press. You have a three-speed fan control, a 12-hour timer. An ionizer present helps the HEPA filter to increase filtration.

 Filters 

Talking about the three-stage filtration system, Alen uses the same system found in other purifiers. The contaminated air first passes through a washable pre-filter. This filter collects large particles like dust, sand, and pet hair. Also, this filter acts as a safeguard for the HEPA filter.

Next, a HEPA filter deals with 99.9% small particles down to 0.3 microns. In the last stage, an ionizer is present to aid the HEPA filter in dealing with pollutants. However, we have not noticed a visible change after turning this ionizer on.

 Filter cost and sound level 

Another vital thing to note is the air filter cost. A single filter costs around 44$. Keeping in mind, you need to change this filter every six months; you may find it expensive. You can only use this device in a tiny room, not more than 80 sq. ft.

The noise level is loud, even because this purifier does not have a powerful motor. It measures 42 decibels at the lowest, while a crackling 56 decibels sound at higher levels.

Summary

We do not recommend you using this air cleaner in your room or a library.  However, you may use it in a little washroom or place like this. The loud noise level is a significant disadvantage of buying this device, making this unsuitable for home use.

5. Levoit Core 300 – Best Air Purifier for Smoke

best air purifiers 2021The Levoit Core 300 has a modern yet simple design, a thing that makes it unique.  If you are searching for reliability, the Core 300 does not let you down. It uses a True HEPA filter to filter out particles. This device’s design blends it perfectly into the surroundings, whether it is a room or an office. The build is high-quality plastic.

Key Features

  • Extra wide coverage 219 square feet and replace the air 5 times in an hour.
  • Energy star certified with good CADR rating.
  • Light on/off feature for night sleep.
  • Excellent sleep mode that works on 24dB noise level.
  • Capture the pollutants from every direction due to its elegant design.

Pros

  • Budget-friendly product
  • Low noise level
  • Smart and attractive design

Cons

  • No smart sensor

Levoit Core 300 Review

 Touch Control Panel 

The device has touch controls on top, although it does not have many features. After connecting it through electricity, the buttons would glow up. You can render it on or off through the control panel, and three-speed fan control is present. There is a sleep mode button too, which reduces the noise and the let’s intensity to our happiness. However, if you still find the light too bright, you can completely diminish it.

 Wide Coverage 

You can use this purifier in a large room measuring up to 219 sq. ft, cleaning the air five times in an hour. The three-stage filtration system removes 99% of the pollutants. A warning light starts to glow if the air filter needs replacement. The clean air delivery rate for this is 141 for smoke, 140 for dust, and 145 for pollen.

 Filters 

Allergens and odors get filtered by the primary filter, HEPA filter, and the pre-filter. There is a pet filter present that removes strong odors like pet litter or pungent smells. A toxin absorber filter blocks harmful substances like cigarette smoke, vehicle fumes, and other toxins.

 Sound Reducing Technology 

A Quite Keep technology found in this best air purifier reduces noise levels to a great extent. A 65 decibels sound level is measured on maximum speed. This much noise level is a little too loud for my liking.

Summary

We have found this device to be a very effective one. Quite Keep technology reduces noise levels, which makes sleeping wholesome. You can use this device in a large area like a living room due to its efficient engine. We especially loved the minimalistic design, which blends effortlessly into the surroundings. This is the best air purifier for large rooms.

6. Dyson Pure Hot + Cool HP04 – Best Air Purifier for Large Room

Best air purifier 2021The Dyson Pure Hot + Cool resembles something from the future. Be mindful of placing it in vintage surroundings, as it does not blend with old furniture and dull colors. However, if you have a modern house with color variations, we bet this device would blend right in.

Key Features

  • Automatically detect airborne germs and gasses.
  • 350 degree oscillation direct air flow.
  • Multifunction air purifier, tower fan as well as space heater.
  • 10 air speed and automatic shut off feature.
  • Night-time mode with quiet operation and dimmed display.

Pros

  • Good fan power
  • High-end product
  • Additional features
  • Smart design
  • Superb performance

Cons

  • Expensive product

Dyson Pure Hot + Cool Review

 Remote Controlled 

The Dyson Pure Hot+Coolhas more attributes than the average device. For lazy heads like us, we loved how we controlled the air cleaner with a remote. You do not need to get out of your bed to control the fan speed anymore.

 Automatic Thermostat 

Having a thermostat is another life-changing feature you get with this device. It heats your bedroom in chilly winters and cools the area in hot summers. As the world is becoming autonomous, companies have started to automate their purifiers. With the Auto mode present, you do not have to adjust the fan speed or temperature manually. The cleaner takes care of that itself.

 Dyson App 

There is a Dyson link app available. You can control the power, speed, and other features of this air cleaner even when you are not at home. Air quality monitoring is another useful feature we loved. The 350* rotation purifies the whole room, leaving no room for pollutants.

 Night Mode 

This device thoroughly satisfies your needs if you plan to use this device in your bedroom at night. A night mode ensures the noise reduces to the lowest, and the light is at the dimmest.

 Asthma Safe 

The HEPA filter removes 99% of the various allergens and pollutants. This cleaner has proven itself to be a doctor for asthmatic patients and people with breathing issues.

Summary

If you ask us, we consider this the best premium air purifier. The features are countless and are useful in day to day life. The modern design has stolen our hearts, so if you want a feature-rich air cleaner, do not hesitate to choose this one.

7. Levoit Vista 200 – Best Air Purifier for Pets

best air purifier under $100Once again, Levoit has impressed us with a classy yet modern design. This air purifier has a matte finish with quite a lot of curves. A yellow light adds to this device’s beauty; when looking for a small purifier that can serve your home or bedroom, be sure to consider this model over others.

Key Features

  • 5 stage filtration system.
  • 4 in 1 multi function with Auto mode, sleep mode, timer and negative ion mode.
  • 4 variable fan speeds according to requirements.
  • Eco-friendly and safe for both kids and pets.
  • Built-in smart sensor and real time display.

Pros

  • Best value for the money
  • Less noise
  • Compact design

Cons

  • Low CADR rating
  • lacks of smart sensor

Levoit Vista 200 Review

Design and a Universal Adapter:

 Design and a Universal Adapter 

We have found the design resembles much of the Levoit Core 300 mentioned above. Surprisingly, a 12V AC adapter powers this air cleaner. If you ever misplace this universal adapter, you can get a new one from the market. A cylindrical shape allows the Vista 200 to suck air from all around it.

 Energy Saving Filtration System 

Let us start with the features you get to see in this popular device. A three-stage filtration system is very efficient. It removes up to 99.7% of dust particles, viruses, bacteria, and pet hair. A minimal 15 watts are consumed, considering this is an energy-efficient device. The increase in your electricity bill is unnoticeable.

 Sleep Mode 

Sleep mode takes this device to the next level. Only 26 decibels of sound production, not disturbing your sleep in any way. If the night light disturbs you, turn it off with a mere touch of a button.

 3 Stage Filteration 

Coming to the filtration stages, a Pre-filter traps material, which usually blocks the True HEPA filter. This pre-filter prolongs the longevity of the primary filter. We highly recommend that you vacuum-clean the pre-filter after a few weeks to remove anything that causes blockage.

The second stage includes the True HEPA filter. This filter captures tiny particles like dust, bacteria, and mites. Furthermore, the company recommends you to substitute the filter. An indicator is present in this device to let you know if the filter needs changing or not.

Activated Carbon at the third stage filters our foul odors and smoke. Smells like cooking, car fumes are eliminated by this filter. This air purifier is for small rooms, not more than 100 sq. ft.

Summary

If you ask us, we found no drawback in this device. We love how the manufacturer included a universal and widely available 12V power supply. We call this the best universal air purifier. Also, we have included this in the list of the best air purifiers 2021.

8. TaoTronics HEPA H13 – Best Air Purifier for Bedroom

The TaoTronics Hepa air purifier comes in a cylindrical design. It inhales air from the bottom, filters it, and exhales it out from the top.  We are not fans of such a design. Although such a design makes it compact, it decreases its efficiency and air circulation. It is one of the best air purifiers in 2021.

Key Features

  • 5 stage filtration system.
  • 4 in 1 multi function with Auto mode, sleep mode, timer and negative ion mode.
  • 4 variable fan speeds according to requirements.
  • Eco-friendly and safe for both kids and pets.
  • Built-in smart sensor and real time display.

Pros

  • Low noise level
  • Smart sensor
  • Safe for kids

Cons

  • No remote control
  • Thin Carbon filter

TaoTronics Review

 Design 

Constructed using strong ABS plastic, it has a matte finish giving it a balanced look. The design is well rounded and curvy, making this device safe if you have kids around.

 Control Buttons 

 To change the settings, you have four buttons placed right on the top. A light button increases or decreases the intensity of the light according to your liking. This button also acts as a filter replacement warning light.  Another button controls the fan’s speed, while there is also a button to activate sleep mode.

 Easy to Use 

This device is easily detachable. Just remove a few screws, and it gets separated from the middle. You can change the filter easily using this hassle-free method. This air cleaner operates in a 161 sq. ft room with full efficiency. So it quickly filters a mid-sized bedroom or a living room’s air.

 Sleep Mode and Sound Level 

The sleep mode impresses us. The decibels go down to a mere 25, which is quieter than a human’s whisper. Also, the light turns off, so you sleep like a baby.

 4 Speed Fan 

A 4 option speed control provides excellent flexibility. You can hear a loud sound at the highest speed. However, you would not hear a single sound operating it at a lower level.

 Filters 

Like other air cleaners, this one also has a three-stage filtration system. A pre-mesh layer is present on the outer side, removing visible particles like animal fur or dust. This filter acts as a barrier to the primary HEPA filter.

The second stage has a HEPA filter, which does most of the work. It removes almost all pollutants, making it dirty in no time. While at the last layer, an activated carbon filter ensures you get a fresh smell.

Summary

We adore this device as a bedroom purifier. If you want a compact, easy to open, and efficient device, be sure to make this one a priority. We have given this the best bedroom air purifier’s title due to it having the lowest noise level.

BUYING GUIDE

best air purifier

Now air purifier is an essential part of a healthy lifestyle. Moreover, it is our responsibility to provide our body pollutant-free air. For this purpose, good quality air purifiers that featured a thick HEPA filter and real activated carbon filter are the best option.

Natural pure air only exists in the forest, on the sea, or at the top of the mountains. Clean and pure air is the most acceptable gift from nature. Still, we manipulate it badly and convert it into polluted air due to our wrong policies.

In our homes, after proper cleaning, we think our indoor environment is healthy and safe. Unfortunately it a wrong approach, our indoor air is much polluted than outdoor. Sometimes it becomes worst and become 100 times more polluted than outdoor.

Usually, a person can intake 10-12 kg air per day as well as 04-05 kg food and water. You know how much we are curious about our hygiene food and pure water. And what about the air that we intake three times more than food and water? It’s sorry to say, but we neglect this vital element of life is the air we intake clean.

We should think about our environment where we breathe, mostly indoor areas where we spend more than 90% of our time, how to minimize pollutants from indoor air, and maintain a safe and healthy environment to breathe.  

The golden rule about indoor air quality is “Prevention is better than cure.” So we need to change our lifestyle. Different methods are used to improve the environment inside the homes, offices, and cars, but the most comfortable and convenient way to use an air purifier. Air cleaners are not only safe to use also economical. Keep reading to explore more about indoor air quality.

Benefits of Air Purifier – Why you Should Have an Air Cleaner?

  • Air purifiers will help to control the growth of mold and mildew.
  • An air purifier removes the asthma triggers like CO, dry and dead skin cells, smoke, dirt, and many others.
  • They are highly beneficial to capture allergens from indoor air.
  • Air purifiers improve overall air quality even in airtight or low ventilated areas.
  • Reducing sickness and health hazard pollutants and minimize your health budget.
  • Eliminate the lousy odor of smoke, pets, and kitchen activities.
  • Minimize work loss and boost productivity.
  • Deactivate air-born viruses and bacterias.
  • Keep your body skin healthy and fresh.
  • Air purifiers can also absorb toxin gases and radiations.
  • Air purifiers are more critical for infants and babies to develop their vital organs.
  • Air cleaners also keep us safe from lungs and respiratory infections.

Top-rated Air Purifier Brands 2021

The air treatment industry is enormous, and competition is high in air purifiers. Some brands are still ruling the air purifier industry and count as the best air purifier 2021. In this article, we compiled some top-rated air purifier manufacturers.

Now indoor air quality is a concern of everyone due to their dramatic rule air purifiers become very popular from the previous few years. Just open a window is not enough to maintain a healthy indoor environment. It doesn’t matter if you are purchasing1000$ smart air purifier or a 200$ mini air purifier, the brand matters. There are also some other factors to check, like its filtration system, CADR rating, ACH rating, and maintenance cost.

We prepared this list according to that particular air purifier brand’s performance, reviews, customer support, and warranty. Let’s check out the list of best air purifiers in 2021.

1- Rabit air

rabbit air air purifierThe next brand on our list is Rabbit air, the highly recommended and certified medical-grade air purifier manufacturer in the United States. Rabbit air is a Los Angeles based company and leads the North American air purifier market since 2004.

It mainly produces various types of various type of household appliances, including top quality air purifiers. Rabbit Air MinusA2 is the best mid-range air purifier that is a quiet and energy star product. Another highlighted edge of Rabbit air is its best customer support service. The best seller products of Rabbit air are listed below:

2- Tao Tronics

tro tronics air purifierTao Tronics is a rapidly growing brand in the market of air purifiers. It’s a flagship brand under the Sunvalley Group. Tao Tronics provide smart products and. They utilize the latest technology and introduce easy to use products at an affordable price. 

Tao Tronics establish their business in 7 countries in the United States. They believe in innovation and development. Tao Tronics is among those brands which have come far ahead from where it began due to its right quality products. Some top seller products of this fantastic brand are listed below:

3- Honeywell

honeywell air purifierThe next air purifier brand in the world is Honeywell, whose headquarter is located in Charlotte, United States. Honeywell International Inc. It is one of the world’s top-rated organizations. It provides its services in four significant categories of Aerospace, Home and Building, Performance Materials, and Safety and Productivity Solutions.

Its high rating in the market is its 135 years of experience in the heating field. Yes! Honeywell was founded in 1885 by the founder of Albert Butz. Initially, they produce furnace regulator and alarm. Honeywell also the inventor of the modern thermostat.

Honeywell introduces high-quality product at a very reasonable price range. This is possible due to the technology changes incorporated by the Honeywell for turbo purification system utilized in air purifiers. Well, Honeywell AirGenius innovation has given give an upper hand over different top brands. The most reliable products of Honeywell are given below:

4- Germ Guardian

Germ guardian air purifiersGermGaurdian is currently the number 1 brand in the market of air purifiers for a reason. They have made some power air purifiers that clean the air up to 99.97%. The features, filtration system, and price are better than opponents. 

GermGuardian has made some great air purifiers like AC4825E that is a best-seller brand on Amazon. Guardian technologies produce their products only for mass sellers. Their air purifiers only available is online, like Amazon. They offer their products at a very affordable price. You can buy a quality air purifier of GermGuardian minimum of less than 50$ and a maximum of 400$. The most widely sold air purifiers from GermGuardian are given below:

5- Blueair

blueair air purifierBlueair is Sweden based one of the top air purifier manufacturing company worldwide. Since 1996, Blueair has produced the best quality air purifiers.

The main reason the Blueair brand has jumped into the list of 11 top-rated air purifiers manufacturer is its classic series. Classic series is state of the art and widely appreciated by allergies and asthmatic patients. Some popular brands of Blueair are shown below:

6- Dyson

dyson air purifierDyson is a U.K. based company established in 1993. Dyson produces many household appliances, including air purifiers. Dyson introduces itself as an effective, reliable, and efficient air purifier brand in the world.

Moreover, Dyson is also well known for other brands like vacuum cleaners, heaters, humidifiers, hairdryers, and much more. Dyson introduces smart Wi-Fi that enables air purifiers. Their hot and cool features are to make their air purifier unique from other brands. Some most appreciated brands of Dyson are listed below:

7- Levoit

levoit air purifierThe second-best air purifier brand in the world is Levoit, which is an American brand. Levoit has probably brought the best air purifier not only across the United States but also worldwide. Levoit is known for its 3 stage filtration system.

Well, the filtration technology utilized in Levoit products is superb concerning the healthy and clean air offered by the air purifiers. Levoit gets a huge appreciation throughout the U.S. and becomes a best-seller brand due to its best performance.

One element for which the Levoit is profoundly is its ECO friendly working (100% Ozone free). It offers this at low power consumption. The most reliable and best seller product from Levoit are listed below:

Other Brands

Some other famous brands are Holmes, Winix, Alen Breath, Whirlpool, Ionic Pro, Air mega, Bissel, Rigoglioso, Filterte, Vremi, Toshiba, and Hathaspace. They are all the best at their end and also provided top-rated products.

Factors to be Considered Before Buying a Best Air Purifier 2021

Before buying an air purifier online, it is always recommended to consider what features the brand is providing and what factors have been excluded. Furthermore, it is regarded as the best practice to read the customer’s reviews about that product before making a final decision.

Many new users are in doubt, is this device really works and capture our invisible enemies. Ensure that the best air purifier 2021 can provide an eco-friendly and clean the indoor environment with perfection. Here are some essential factors that should be considered before buying the best air purifier.

1- Why Do I Need an Air Purifier?

The fundamental question about air purifiers that you should have to know. Different kinds of air purifiers available in the market; which one fulfils your requirement? Ask yourself some listed below questions and clarify your need.

  • Do you need an air purifier for kitchen activities?
  • Do you want to get rid of pet allergens?
  • Do you need an air purifier to eliminate odor or tobacco smoke?
  • Do you want to use your air purifier on your office table?
  • Do you want to breathe clean air during travelling in your car?

Generally, the purpose of an air purifier to clean the air. But for a specific task, some dedicated air purifiers are available and working very well. If you want to deal with PM and pet hairs, you need an air purifier equipped with a HEPA filter. If you want to deal with odor, gases, and radiation, you should go with an activated carbon filter.

Some good quality air purifiers are featured with both HEPA and activated carbon filters. At the same time, some brands offer a washable filter that is economical but less effective. So be clear about the purpose, and then choose the best air purifier 2021.

2- What size air purifier do I need?

In the field of air, purifier weight or dimension doesn’t matter. Here the size of the air purifier is calculated through ACH and CADR rating. First, calculate the area of space where you want to install your device. Air purifiers are also portable; you can move from one room to another.

Anyway, mostly the manufacturer mentions the maximum room capacity in the specification. For better performance, don’t use an air purifier more than its recommended room coverage area.

Read also: What is ACH and CADR rating?

3- Where Should I Put my Air Purifier?

The placement of the air purifier is a crucial point to understand. The performance of your air purifier is based on proper placement. Following points keep in mind for proper placement.

  • Keep your device near the source of pollution.
  • Do not attach air purifier with walls nor in the corner.
  • Put it near the source of ventilation.
  • Keep away from other electrical appliances.
  • Do not cover your air purifier with cloth or furniture.

4- Coverage Area

Air purifiers available in different sizes like small, medium, large, or a whole house. Now explore in which room you spend your maximum time? Or which room is more polluted? Like a pet’s room, kitchen, or smoking area. After that, calculate is the area (length x width) i.e. 

If your room size is 20 x 16 feet

The area of the room is 320 square feet.

So you need an air purifier covering an area of more than 320 square feet like Tao Tronics TT-AP002.

5- Air Change per Hour

An air purifier’s performance based on ACH (air change per hour) means how much time your air purifier recycles the air in one hour. As we mentioned above, the room with 320 ft2 and the same model TT-AP002 can purify 330 ft2 every 15 minutes.

So the ACH of Tao Tronics TT-AP002 air purifier is 04 for a room of 320 ft2 area.

6- CADR Rating

The main factor that calculates the ultimate performance of an air purifier. CADR (clean air delivery rate) rating is calculated for dust, pollen, and smoke. Another term CFM use in an air purifier, which is used to measure airflow. But the CADR is a different thing; it means how much air is cleaning during flow.

For example, suppose your device’s airflow is 300 CFM, and its CADR rating is 150 CFM. In that case, it means your air purifier only purifies half of the passing air. Now the question comes to mind, what is the best CADR rating? So the golden rule is 2/3 means the CADR rating of your air purifier should be 2/3 of its airflow.

7- Filters Replacement Cost

An air purifier is not a significant investment; mostly, mid-size air purifiers available at a very affordable price. But they are not a one-time investment. They have some extra running costs instead of electricity. That is the filter replacement cost, which is an essential factor to consider before buying an air purifier.

There is no specific time to replace a filter; it is based on how much time you run or the air concentration. Some smart air purifiers featured automatic sensors indicating the filter replacement, while some have to check manually.

Some air purifiers are equipped with a washable filter as well as a pre-filter. That increases the life of the secondary filter. So always prefer a quality product with low filter replacement cost.

8- Smart Features

We live in the modern era, now manual work replaced by automatic features or artificial intelligence. Latest air purifiers are also equipped with smart features that provide us with ease of use and more accuracy. Smart features like auto mode, smart sensors, voice assistant, filter replacement indicator, Wi-Fi, and android app let you monitor and control your air purifier.  

With these high-tech upgrades, you can also fix a cleaning schedule as per days and hours. As well as the auto mode is also helpful to reduce running cost.

9- Noise Level

 Along with other factors, the decibel level is also essential. Usually, portable air purifiers are noisy, but some good quality air purifiers are working on low noise levels even at high speed. Let’s understand the noise level; you can estimate that our average conversation decibel level is = 60 dB (A).

Portable air purifiers are mostly placed in our living room or bedroom, and a high decibel level is a headache. We mention below the air purifier categories according to their noise level.

  • Extremely quiet air purifier            =             15 dB(A)
  • Best air purifier (Whispering)         =             20 dB(A)
  • Good air purifier                               =             32 dB(A)
  • Standard air purifier                        =             36 dB(A)

Above 36 dB(A) air purifiers are not suitable for indoor areas. You have to choose the right product for a low decibel level of noise.

10- Power Consumption

According to ENERGY STAR, the average size air purifier consumes 45-50 kilowatt-hour per month that is not a big deal. If you are curious about power consumption, always choose appliances having an energy star label. Typically air purifiers are energy efficient as compared to other appliances. But choose an energy star air purifier. You can reduce your power consumption by around 18-20 Kilowatt-hour per month.

11- Price

An air purifier is an affordable product. For a primary or small room air purifier, you don’t need to spend hundreds; you can find a top-rated HEPA air purifier below $100. The best seller air purifier on Amazon that is less than $100 are:

But if you have a large room or want to enjoy smart features, you need to pay more. A good quality smart air purifier for a large room available in the price range of $300 to $500. Some top-rated brands of smart air purifier are:

12- Warranty

The extended warranty period shows the durability of the product and the credibility of the manufacturer. It shows how confident a manufacturer about his product. An air purifier is not a complicated device; it is simple and contains only a few parts and mostly long-lasting products. However, always ask about warranty and customer support from the manufacturer.

Here we enlisted some popular air purifier brands along with the warranty period they provide. So the thumb rule is to prefer an extended warranty period.

  1. GermGuardian                  =             03 years
  2. Hatha space                       =             02 years
  3. Winix                                   =             01 years
  4. Rabbit air                           =             05 years              
  5. Honeywell                          =             05 years              
  6. Tao Tronics                        =             12 to 18 month

Common FAQs about Air Purifier

best air purifier 2021 faqs

What is Pollution?

Our atmospheric air combines different elements with a specific quantity (shown in the image). When the value of any element decreases or increases, the air becomes polluted.

Why Indoor Air Become Polluted?

The concentration of any chemical, biological or physical contaminants in the air cause indoor air pollution. Every year millions of peoples died due to air pollution.

Moreover, some other elements become the cause of indoor air contamination when it comes to indoor air quality. Some highlighted factors are kitchen activities, pets, cleaning products, insufficient ventilation, building material, heat, and humidity.

Do air purifiers remove door?

The odor is an unwanted guest of every home. Different methods used to eliminate but are they safe to use? Or which type of odor removal technique is healthy and economical?  Go ahead first; we need to know the sources from where this unwanted bad odor comes from?

Indoor sources of odor

  • Pets
  • Food garbage
  • Drawers and closet smell
  • Dead insects
  • Sink and trash bins
  • Dishwashers
  • Refrigerator, especially the smell of meat and fish.
  • Tobacco smoke
  • Kitchen activities

Let’s check some traditional ways to deal with the stinky odor.

  • Air freshener
  • Deodorizer
  • Scented candles
  • Some home remedies like baking soda, distilled white vinegar, coffee ground, vanilla extract, and lemon.

In 2021 the verified, safe, and recommended procedure to deal with odor is an Air Purifier with activated carbon is the best option. Air purifiers not only eliminate the foul odor also minimize the toxin gasses and radiation. Moreover, air purifiers with HEPA filters also capture the physical pollutants and asthma triggers.

Can Air Purifiers Make you Sick?

Generally, the air is a safe and Eco-friendly household appliance. But some air purifiers that work on electrostatic precipitators that generate ions, also called ionizers, are not acceptable in some conditions. Actually, ionizers produce emits a small amount of ground-level ozone, which is not suitable for human health.

Some peoples claim that ozone air purifiers remove asthma triggers, but it’s a wrong perception. Asthma becomes more severe with an ozone air purifier because if you inhale even a small amount of ozone, you may face the following health issues:

  • Lungs infection
  • Chest pain
  • Coughing
  • Shortness of breath
  • Throat irritation

The ozone generator is also called an air purifier used to eliminate odor and gasses. Ionizers don’t filter out or capture these gasses or odor, they only change their chemical composition, and the air becomes clean and fresher. When positively charged floating pollutants come in contact with negative ions, they become heavy and drop down to the surface.

Ionizers are working great, but the only drawback is their ozone emission that is bad for our health. So air purifier with ozone is strongly prohibited for asthma and cardiovascular patients. So check ozone free tag before buying an air purifier.

Do Air Purifiers Work with Windows Open?

The reasonable answer is “YES” but NO! Don’t be surprised; we only say yes because it doesn’t matter you open or close the window. The air purifier works on its capacity. But some other factors matter when you open a window.

  1. What kind of atmosphere is outside the window?
  2. Is there any source of smoke or a kitchen chimney outside the window?
  3. Does your window exist near the road?
  4. Is there any industrial area or factory near your home?

In such conditions, the answer is no! Don’t open your window while the air purifier is running. But if there is a garden or clean and healthy atmosphere outside, then why not? Fresh and pure air the best gift of nature.

Note: In pollination season, keep your windows or vents close and avoid pollen exposure because pollen is a significant cause of allergy.

Furthermore, if you open your window for ventilation purposes, it may provide a gateway to an outdoor pollutant to come inside. Even though directly open a window, use properly insulated ducts or vents with HEPA filter. Keep the fan is on and gradually replace the HEPA filter to stop the outdoor pollutants.

Final Verdict:

These were the best air purifier of 2021, we have tried our best to put the recommended, medical-grade, Eco-friendly, and best seller products. Talking about indoor air quality is crucial in these days of the pandemic. Now we spend more time indoor and now good air quality and better health are more important to fight against Covid-19. Buy the best air purifier and start breathing in safe and healthy air.

Still having any doubt about the best air purifier 2021, which is good for you? Read our complete buying guide, benefits of air purifier, and common FAQs for buying the Best Air Purifier 2021. Do let us know your suggestions and experiences also which air purifier you are going to purchase for you.