Best air purifier

Best Air Purifier Wirecutter

Airborne pollutants – contribute almost in every life claiming diseases in a diverse way. Either makes the severity level intolerable or contribute directly to develop a new one. According to the recent revelation of WHO, air contaminants account for 29% of all deaths and premature deaths of estimated 4.2 million each year, globally. Enough to depict the significance of these air being clean for the sake of our well-being.

But, the growing trend of massive industrialization, which emits toxic substances at an alarming level have left us with little hope. Besides, on the onset of covid-19 outbreak, working from home is becoming the new normal. But, if you are an abide follower of recent developments you already cognizant of the fact that, it’s the air indoors, which can actually be more polluted than the air outdoors.

Ventilation can be handy, however, in terms of quality of air indoors, an air purifier can make an instant difference. Available in all shapes and size, and a quality purifier can potentially remove 99.97 percent of all airborne particles. The overwhelming number of devices available makes it difficult to choose one from, while our definitive list is here to assist. Stay glued.    

#List of the Best Air Purifier– Editor’s Pick:

Top 10 Best Air Purifier Wirecutter Reviews

Air Purifier Wirecutter

1. Levoit Portable Purifiers for Dust with Filter Change Reminder


Poorly manufactured air purifier might pose serious threat to user’s health, especially for the minors. Anion and UVC Light that used by most variants are known for producing a kind of air pollutant-Ozone. In addition to the minors, adults, those who are prone to airborne diseases, asthma for example suffer greatly from this.

Good thing, this Levoit variant is entirely free of that pernicious Ozone. Besides, engineered with an advanced 3-Stage filtration system, which includes a pre-filter, a HEPA filter and an Activated-Carbon filter. Result, airborne contaminants as tiny as 0.3 microns are due to be entrapped.

And yet, the real deal is, as we believe, its Ultra-Silent operation – a noise level of 25dB means a soothing and restful environment be present in the indoor. Thoughtful, contemporary design of it comes with an intuitive touch control. Setting changes, for example, variable fan speeds, selecting a brightness level from two, light and display on/off can be figured out quite easily.

Forgetting the filter changing schedule is the last thing to happen, since a built-in replacement indicator is there to assist in this respect. In addition, 25W motor which complies with the British standard is all set to make the job done.

  • Three filtration phases
  • Filters 99.97% of pollutants
  • Built-in night light with dual settings
  • Three step fan speed
  • Compact and portable

  • Can only cover a room of maximum 300 square feet

Buy on Amazon

2. Coway AP-1512HH Mighty Air Purifier


Welcome to the future of Air Purifier. Ranked first in most of the reviews and awarded as the best Air Purifier in 2018 by Wirecutter. Designed to cover a space of up to 360 square feet. But, what strike us most is its capability of reducing odor.

In raw performance, achieved the feet of removing up to 98% of airborne particulates in the span of just half an hour. Thanks to the unique 4 step filtration system, which comprise a pre-filter, a deodorization filter (to adsorb cigarette, pet and food smells), true HEPA filter, and a Vital Ion (to trap airborne particles more efficiently)

In the technical part, real-time pollution indicator sensor is a true delight. Together with the bright LED, it updates you how clean or dirty your indoor air is, in every waking minute. A timer allows you to run it for a preset time (1/4/8 hours). A replacement indicator reminds you when to replace or wash the pre-filter as well as the HEPA filter.

Variable fan speed switches automatically based on the pollutant level and activates Eco mode if no pollution recorded for 30 minutes. Easy to live with, since it’s quiet and offers a dark mode at night.

  • 4 step filtration mechanism
  • Air quality indicator sensor with LED
  • Automatic switching between fan speeds
  • Eco mode
  • Quiet operation

  • An imbalanced fan can cause uncontrollable shaking for the whole unit.

Buy on Amazon

3. Levoit core 300


At $99.99, you can’t just expect more than what this Levoit variant offers. Apart from looking great, it performs exceedingly well in places like, small bedroom and average office room or any place of that is about 200 square feet in size. Over the span of 30 minutes, you can expect about 97% pollutant reduction at high setting, while at medium it almost 92%.

If there is to singling out one thing of this purifier, it’s the compact and timely design of it. At 14.5 inches tall and 8.5 inches wide, it fits perfectly anywhere you place it. Core 300 filter is known for crisp and clean air, when Vortexair Technology ensures a strong flow of air.

Filtration mechanism designed with an ultra-fine pre-filter, a true HEPA filter (H13) and an activated carbon filter. Outcome, particles and allergens as small as 0.3 micron together with dust, smoke, pet dander or pollen, which are considered as large particle, are due to be trapped.

At medium and low setting, works almost silently, but at high speed mode don’t forget to activate the “sleep mode”, at which it produces almost undetectable levels of noise. Furthermore, you are able to shut the light off to make your sleep completely uninterrupted.

  • Affordably priced
  • UV/Ion light free
  • Improved Vortexair Technology
  • Thoughtful and compact design
  • Extended service life

  • Not essentially energy efficient

Buy on Amazon

4. Alen FLEX Air Purifier


Moving forward with our list, we have something that truly excites us. Yes, this Alen produce air purifier has every right to be appreciated both for its build quality and technological advances. The sleek design of it is a compliment for small to extra-large bedrooms, living rooms, and office spaces. Equally handy in your kitchen setup, nurseries or even at the basements.

By having this purifier around, Alen says, you are weaponized to eliminate 99.99 percent of bacteria, and aerosolized viruses. Besides, effectively removes airborne particles larger than 0.1 microns; thanks to its medical grade H13 HEPA filter. And, to make the most of your bucks, filters hold out for 3 to 5 months longer than that of average one’s.      

It’s also worth mentioning that the purifier works twice as fast as other variants, when it’s at turbo speed – 700 SqFt in every 30 minutes is quite a performance. Presence of antimicrobial compound helps win the war against germs, bacteria, mold, and fungi.

A measurement of 25″x 15″x 8″ (HxWxD), together with the weight of 15lbs speaks about its portability. When placed beside your bed at night, press the power button once to activate the “lights out mode” to feel more rested upon waking.  

  • Suitable for a range of places
  • Medical grade HEPA filter (H13)
  • Works faster
  • Filter lasts up to 5 months longer than average
  • Lights out mode for uninterrupted sleep

  • Portable, but quite space demanding

5. Bissell Smart for Large Room and Home


If ever you needed an example of how effectively an air purifier can work, this is it. Not the priciest one in the list, but for severe allergy-sufferers, it may well be an option worth considering. Captures microscopic airborne particles of as small as 0.3 microns irrespective to pollen, dust, smoke, hair or pet dander.    

Its superior filtration mechanism designed in a way so that it can eliminate odors from pets, cooking, smoke, and other common household odors. Besides, an automated air circulation system is in place, which regulates the fan speed. While, the mechanism for monitoring the indoor air quality and generating color coded feedback is in the heart of all of this.   

Best part of the whole deal is, it’s unusually comfortable to live with, whereas the compact structure works super quietly. Automated dark mode at night, make it a good fit for people who have awakenings.

Easy to access filters accessible from the front side. Scattered wire isn’t the scene expected, since a dedicated cord storage and concealment available in the back. To make the structure more stable and keeping it a bit elevated from the floor, four platform legs have been fitted.  

  • Automated air circulation system
  • Automated night mode
  • Ultra-quiet working mechanism
  • Easy to access filter
  • Elevated platform legs

  • There were some customer complaint reported regarding the availability of replacement filters

Buy on Amazon

6. Alen BreatheSmart Classic Large Room Air Purifier


If covering a lot of square footage, is what you aim for, just don’t look beyond this Alen made air purifier. Cleans up to about 1100 square feet, though, three times faster than market competitors, and all in the space of just 30 minutes. Above all, have a proven track record of helping allergies and asthma by sweeping away dust, germs, harsh odors and fumes, pet & household odors.

Their cutting-edge technology in the BreatheSmart, as Alen claims, works twice as noiselessly as that of other contemporary devices. Uncharacteristically, even when being operated in a turbo speed mode, thanks to Alen’s advanced WhisperMax technology. Quite a device to have for those who want their sleep to be incessant. For more conveniences, a light-off mode also available.   

At $649, it might seem high for a few, but is actually quite a deal if you take its features into account. To make it work 24/7 with auto adjust cleaning power, just activate the auto mode too, without being worried, since it’s built with continuous use in mind.

Moreover, certified by Energy Star, to capture 99.97 percent of airborne particles. Its color shifting LED indicator updates you and shifts color based on pollutant level. Inclusion of Laser Smart Sensor makes it impracticable for particles to remain undetected.

  • Energy star certified
  • Awarded for the extended coverage area
  • Whisper-quiet operation
  • Medical grade H13 HEPA filter removes pollutants down to 0.1 microns
  • Smart sensor for airborne particle detection

  • Quite expensive

Buy on Amazon

7. Coway Airmega 400 Smart for Extended Coverage


The value of an air purifier lies in the results it gets for the users and its ability to hold a steady performance for long. Nobody wants to choose an air purifier that falls apart shortly, especially when it comes with a sizable price tag.  

The best way to make the best out of your investment, in terms of air purifier, is to spend on a proven performer. Airmega 400, engineered by Coway, for example. A stellar performer, accounts up to 99.7% to 99.9% reduction of particulates. Thanks to the Airmega Max2 filter that also reduces volatile organic compounds and significantly lessens fumes such as NH3 and CH3CHO.    

Similar to other high-end purifier, it can automatically adjust the fan speed, but with an impressive preciseness. Able even to activate the sleep mode, when the indoor is pollutants free, and most surprisingly, wake itself up immediately after any detection – though without any human touch.

For more conveniences, just install the mobile app, developed to control the purifier remotely, stay updated about the quality of the air, and to see if filters need to be cleaned.   In addition, covers a whopping 1500 square feet, with the ability to draw air from both sides at once. Eliminates the need of precise positioning, even though it’s compact and portable.   

  • Smart technology and practical design
  • Strong dual suction
  • Automated sleeping and waking, based on air quality
  • Large coverage
  • Integrated mobile app

  • Issues reported regarding its smell reduction capability

Buy on Amazon

8. Dyson Pure Hot + Cool, HP01 HEPA Air Purifier


Multitasking at its best. Purifying dirty indoor and heating or cooling the air at the same time. What’s more one can expect from a purifier and most of all, who else aside from Dyson can promote such an innovative thought. And highly regarded for clearing pollutants as much as 99.9%, down to 0.3 microns.

Being the veteran in the market, it has been here for few years. Designed to fit in any setup or anywhere in your apartment. An air multiplier technology is in place, which to ensure an uninterrupted flow of purified air. Besides, projects up to 53 gallons of air per second by amplifying surrounding air.  

To perform regular activities such as removing gases and odors, capturing dust, bacteria, pollen, and smoke, a sealed HEPA filter with activated carbon filters are in place. Detect and diagnose airborne pollutants automatically and show real time status. In addition to that, can be used as a space heater, its backward airflow mode allows you to purify the air without activating the heating/cooling option.  

  • Certified as asthma and allergy friendly
  • Projects powerful airflow
  • Multifunctional
  • Easy access control panel
  • A compliment for any setup

  • Technologically more advanced variants are available in the market

Buy on Amazon

9. DP04 by Dyson


Has long been known as a pioneer in the air purifier manufacturing industry, Dyson always focused to bring something innovative to the table. In the form of DP04, they have presented yet another example of that. At $449.99, it surely costs you a hefty amount, but when you are spending heavy, you must spend on something like DP04.

Designed and engineered to handle a large space, this counter top variant has a certified HEPA filtration mechanism. A dedicated smartphone app available to make every information accessible remotely, for example, when to change the filter, environmental condition both inside and outside. Besides, small but smart LCD display installed on it also keeps you updated about pollutants type, too in real time.

Moreover, when night mode is activated it monitors and purifies air almost silently, while the display also remains dimmed. 360° filtration system of it includes an activated carbon filter to make the room free of gases and odors. And the HEPA filter captures pollutants as usual.    

A powerful, yet smooth airflow of 77 gallons is due, thanks to the Dyson trademark Air Multiplier technology. Adjustable oscillation angle from 45° to 350° projects purified air circulating throughout the whole room. In fan mode, supplies cool air and when cooling isn’t necessary, just set it to “Backward” airflow mode.    

  • Delivers both cool and natural, purified air
  • Voice control by using Amazon Alexa
  • Quick and effortless filter replacement
  • Intelligent reporting through mobile app and smart display
  • Adjustable oscillation angles TO project of air in the whole room

  • Much louder than expected in regular operation

Buy on Amazon

10. Molekule Air Mini for Small Room


Aimed to bring some ease for serious allergy-sufferers, but not at a large scale. Its 12 inches high stature covers space up to about 250 square feet. PECO technology, as Molekule claims, not just entraps airborne pollutants, it annihilates them.      

The Auto Protect mode of its’, smartly switches between variable fan speed, based on pollutant level in the room, which is being detected by the sensor dedicatedly design to measure the level. No chance to miss the filter changing schedule, PECO-Filter status indicator will remind you just in time.  

Moreover, a weight of just 7.3 pounds indicates its extreme portability. To assist you further in this respect, an attractive leather hand-strap riveted to the side. Energy consumption is significantly low, compare to other devices of its range. In silent mode, create sounds of only 30db; it’s whisper-quiet isn’t it? 

Access your device remotely through the dedicated mobile app. Besides, status of the filter and the fan speed also inquirable by the app.  

  • Highly portable
  • Advanced PECO filter
  • Detect and destroy pollutants
  • Whisper-quiet operation in silent mode
  • Dedicated mobile app for remote access

  • App needs some improvement  
  • At $499, more space coverage expected

Buy on Amazon

Top 10 Best Air Purifier COmparison Tanle

Product Title



Power Source

Item Weight

Item Dimension


Levoit Portable Purifiers 




8.8 Pounds

8.7 x 8.7 x 16.25 inches

oway AP-1512HH Mighty Air Purifier




6.5 Pounds

7.9 x 7.9 x 12.6 inches

Levoit core 300



Corded Electric

12.3 Pounds

9.6 x 16.8 x 18.3 inches

Bissell Smart for Large Room and Home



Corded Electric

8.6 Pounds

8.7 x 6.06 x 24.88 inches

Alen BreatheSmart Classic Large Room Air Purifier




5.26 Kilograms

8.26 x 8.26 x 12 inches

Coway Airmega 400 Smart for Extended Coverage



Corded Electric

18.25 Pounds

8.3 x 14.75 x 25 inches

Dyson Pure Hot + Cool, HP01 HEPA Air Purifier



Corded Electric

15 Pounds

8.5 x 15 x 25 inches

DP04 by Dyson



Corded Electric

24.7 Pounds

14.8 x 22.91 x 14.8 inches

Molekule Air Mini for Small Room



Corded Electric

21 pounds

10 x 17.75 x 26.75 inches

Also Read: Best Air Fryer

Working Principle of Air Purifier

working Principle of Air Purifier

Air purifiers, in general, have three filters of two types. Filters to eliminate solid substances and filter to remove gaseous particles. They pull air through these filters, by which clean the air by trapping the pollutants in multiple stages. And finally blow the cleaned air out using a fan.

How to Maintain an Air Purifier?

Periodical maintenance is the key to make your home appliances work at full capacity. In particular, when you have invested in something for your family’s health, air purifier for example. Follow the following tips to get the best out of your device and extend its overall lifespan.

  • Keep its surrounding clean

Bringing in a device to clean the air doesn’t mean that you can place it anywhere and plug in. Technically, you can do that, but in the expense of reduced life expectancy and subdued performance. Remember, air purifiers are engineered to clean airborne particles that are for the most part invisible, not the tons of household waste you produce daily.  

  • Clean the external buildups regularly

Working principle of air purifier makes it obvious that grills and panels on the exterior are getting congested by dust buildup. This development will obstruct the flow of inbound as well as outbound air. If you don’t want this to happen, just clean them frequently.

  • Take proper care of the filters

Filter clogged with dirt will only result in substandard performance, which can be caused by improper filter setting too. Pre-filters, in most cases, are washable. Clean them on a regular. It will significantly improve the durability of inner filters and saves you some bucks. But, don’t forget to dry it properly, prior of reinstalling.  

Cleaning of an Air Purifier

Having one just cost you money, but reaping the benefits – a lot of other factors also are in play. Cleaning, by far the most decisive one. Following these simple steps will help keep your device immaculate.

Disconnect the electricity supply before getting started. Clean the outlet channel first by removing the dust and debris. A dry, soft-bristled brush will be helpful in this regard. Remember, soft not anything rough. Going rough could do some serious damage.

Open the front grill according to the manual, and see if it requires any deep wash. If so, try some warm or soapy water, should the manual allows.

Some device comes with washable pre and a HEPA filter. If yours one happen to be that kind, apply only water. If things seem really messy, soak it in warm water for a while and clean. Let it dry properly afterwards. For non-washable, a vacuum cleaner will be handy.

Place the filters inside and setup your device. Use dry clean cloth to wipe out the outer surface. Your device is cleaned and ready for next use.

Frequently Ask Questions (FAQ)

1. What do air purifiers do?

Air Purifiers basically work by decontaminating the air, which can include pollutants, toxins. they do the opposite of air filters. While filters only remove harmful particles from the air, purifiers decontaminate air too.

2. Do air purifiers help with Covid?

Air purifiers aren’t meant to guard against viruses. Wearing a mask, performing social distance, and practicing good hygiene should be your first choice. But having an air purifier that will filter airborne particles like COVID-19 may be a good defense plan.
The virus is often captured by filters of air purifiers but doesn’t guarantee you 100% protection from viruses.

3. What are the disadvantages of air purifiers?

With all the benefits of using an air purifier, they have some disadvantages too. Some of them are-
1. Maintenance can be expensive.
2. Ozone emission
3. Ultra-Violate (UV) Rays.
4. Explosions

4. Do air purifiers help in oxygen?

No. Air purifiers don’t increase the proportion of oxygen within the air. Usually, air contains 21% Oxygen, air purifiers remove harmful particles from the air and make air smell clean. That’s why you’ll feel that there’s more oxygen than usual but the proportion of oxygen remains equivalent.

4. Why do I need an air purifier?

Air Purifier is the best thing that purifies indoor air, which can be polluted and full of harmful particles. There are some reasons why you should have an air purifier-
1. If you have respiratory diseases.
2. You live with pets.
3. If you are a smoker pr live with a smoker.
4. You have a newborn baby or you are pregnant.
5. You live on a busy road or near construction.
6. You have children or you are above 60+


It’s worth admitting that air purifiers are becoming an integral part of most of the household’s day by day. Especially, the ever declining quality of air caused by objectionable behavior of human towards nature and poor decision making of policy makers.  

Onus on us to act upon and keep the air breathable, especially if you are raising children. While, having an air purifier considered as the first move. The products we have enlisted here are well researched and the best proven performers of the market. We hope you won’t have to look beyond to get the best air purifier.    

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