The 8 Best Air Purifiers of 2020

Keep dust, pollen, odors, pet dander, and more at bay

Our editors independently research, test, and recommend the best products; you can learn more about our review process here. We may receive commissions on purchases made from our chosen links.

The Rundown
"Perfect for any season of the year, as it adapts to the weather."
Runner-Up, Best Overall:
RabbitAir MinusA2 Air Purifier at Amazon
"Rated to clean the air twice an hour in rooms up to a spacious 700 square feet."
Best Personal:
IQAir Atem at Amazon
"Designed to clean the air in your personal space, the Atem can also purify small rooms."
Best New Technology:
Molekule Air Purifier at Amazon
"The Molekule uses light to activate a chemical reaction that breaks pollutants down into harmless molecules."
Best for Every Season:
Dyson Pure Hot + Cool at Amazon
"The Dyson HP02 is an older and slightly smaller version of the HP04"
"With a modest filter replacement schedule you can use two HEPA filters once a year to successfully capture 99.97 percent of allergens."
Best Family-Friendly Model:
Zigma Smart Air Purifier at Amazon
"The Zigma Smart Air Purifier comes with a handy child lock feature to prevent any inadvertent tampering."
"This purifier uses a multi-step filtration process to keep air clean."

If you’d like to improve the air quality inside your home or apartment, the best air purifiers can help you accomplish that, and smart models even include a convenient app to provide the automated access you expect from the best smart home products

Air purifiers can be effective at targeting the many irritants you’ll find inside, which the EPA estimates are two to five times higher than average concentrations found outside. That covers allergy triggers such as dust, pet hair, and dander to stale, musty air from cigarette smoke and unpleasant odors. Of course, not any air purifier will accomplish what you need for your particular space. It’s important to think about the amount of coverage you’ll need and your biggest air freshening priorities. HEPA (high-efficiency particulate air) filters are said to block out nearly 99 percent of small particles such as pollen and mold. But they’re not the only option for targeting your air-purifying concerns. There are also air purifiers that use carbon, UV light, or ionizing technology—or a combination of a few of these—to target allergens and odors and whatever ails your indoor air quality. 

On top of these key filtering traits, there are options for the way you interact with your air purifier. If you want to focus on a particular room or a larger area of your home, features like wireless range, app access, voice assistant integration, and noise are all big factors to weigh. Our top pick, the Dyson HP04 addresses all of these concerns by offering a stylish and extra-quiet design, multi-season use with accompanying heating and cooling functions, and remote and app access whether you’re at home or on your way there. 

There’s a lot to consider when shopping for the best air purifier, but this list of the top options from Dyson, Levoite, Molekule, and Coway, among others, are some of the very best models to consider for your connected home.

Best Overall: Dyson Pure Link Hot + Cool Air Purifier (HP04)

What We Like
  • Heats and cools

  • Very quiet

  • Oscillates to 350 degrees

  • Alexa-compatible

What We Don't Like
  • Pricey

The Dyson HP04 packs plentiful features in a relatively small and very stylish build. Part air purifier, space heater, and fan, this machine is a worthy companion to any room in your home around or under 300 square feet. This air purifier eliminates 99.97 percent of allergens from the home, which Dyson says is effective against mold spores, smoke, and pet dander. It uses several innovative systems to keep all of these irritants at bay. The Air Multiplier technology and 45 degrees to 350-degree oscillation effectively reach around a whole room with 77 gallons of pure air while also distributing warm or cool air—whatever is best based on the season and the room. If you’d rather not feel any air, though, you can use the Diffuser mode to push the air through the back of the machine to purify without distributing air your way.

Three sensors are always working to detect any unwanted particles and gases in the air, report, and capture them. You can see and control all of this by using the remote to automatically maintain a certain temperature or through the Dyson Link companion app that lets you set a schedule, monitor temperature, humidity levels, and general air quality. You can also use Alexa to keep the routine going for you when you’re not around. 

Another exceptional aspect of this product is how quiet it is. You shouldn’t hesitate placing this in a bedroom. It has a Quiet Mark award to back up its hushed operation at 40dB in night-time mode, which is almost as quiet as a whisper.

Runner-Up, Best Overall: RabbitAir MinusA2 Ultra Quiet Air Purifier

What We Like
  • Covers rooms up to 815 square feet

  • Effectively traps and reduces allergens

  • Five-filter, six-stage purifying system

What We Don't Like
  • Not as modern-looking as some models

  • Pricey

The RabbitAir MinusA2 Ultra Quiet Air Purifier is capable of covering rooms up to 815 square feet or targeting allergy-specific needs in areas up to 408 square feet. That’s quite an impressive reach, given that this isn’t a particularly large product at just 20 inches tall and 21.4 inches wide. This slimmer square build isn’t as modern and sleek as some smart air purifiers on the market, but it can be personalized with an artistic panel and mounted to a wall for space-saving convenience. 

It is one of the more expensive single-room air purifiers, but there’s a lot of innovation under the hood. The SPA-780N comes with a detailed five-filter, six-state purifying system, which includes a washable pre-filter for larger allergens, medium filter for pet dander, and a BioGs HEPA filter that reduces most allergens 0.3 microns in size at a 99.97 percent efficiency rating. The fourth layer is a customized filter that you can choose based on your priority, such as allergies or odor removal. The fifth filter, the charcoal-activated carbon filter, is designed to combat household odors. And the sixth element in the system is the release of negative ions to make air fresher and more breathable. 

All of this can be done from the comfort of your couch using the included remote or over Wi-Fi via the RabbitAir App. You can use the app to change the fan speed, mode (between low to high sensitivity), and monitor air quality—or ask Alexa to do this for you. 

Best Personal: IQAir Atem

What We Like
  • HyperHEPA filters the smallest particles

  • Incredibly easy to set up and use

  • Directly purifies the air you're actively breathing

What We Don't Like
  • Divisive design aesthetic

If you're looking to directly purify the air in your personal space envelope, the Atem from IQAir is the best choice currently available. It's a breeze to set up (our Senior Tech Editor, Alan Bradley, had it unboxed and running in under five minutes), and operation is similarly simple: just plug it in and tap the side to turn it on or alter the fan speed. Higher speeds will expand the volume of air the Atem is capable of purifying, extending it's functionality to the air in a small room (up to 9x13x8).

Winner of a 2019 Global Innovations Award, the Atem is equipped with IQAir's proprietary HyperHEPA filters, which the company says will filter even the finest particles (down to 0.003 microns or 10x smaller than the size of a virus). It perches easily on a desk or similar flat surface and runs very quiet, though the visual design is...striking. Regardless of whether you appreciate the vaguely European-chic aesthetic or find it a bit clunky, the Atem is undeniably a conversation piece.

Best New Technology: Molekule Air Purifier

What We Like
  • Suitable for use in rooms up to 600 square feet

  • Onboard touchscreen

  • Patented filter technology reduces gaseous pollutants

What We Don't Like
  • Pricey

  • Pre-filter needs to be replaced

The Molekule Air Purifier takes a different approach from the more standard HEPA filtration technology. Using its own patented PECO (Photo Electrochemical Oxidation) technology, this filter claims to use free radicals to break down pollutant molecules 1000 times smaller than what HEPA filters capture. Molekule also says that their Air Purifier doesn’t just capture but also destroys mold, bacteria, allergens as well gaseous pollutants from paint fumes and off-gassing. What that looks like step-by-step, is that the Molekule Air Purifier first captures larger particles through a pre-filter that’s similar to a HEPA filter. Then the PECO process takes hold and releases clean air in a 360-degree pattern from the top of the machine. 

It does all of this while looking quite stylish in a sleek silver tower build with a leather handle for easy movement throughout your home. Since it’s equipped to handle larger rooms that are up to 600 square feet, this could be great for an open-concept living room and kitchen or a larger bedroom. The touchscreen on the top of the unit is also visually appealing and practical by offering insights on air quality, scheduling, filtering modes, and filter status. You can also keep up with all of this from the convenience of the smartphone app. The Molekule Air Purifier also operates quietly at just 41dB at its lowest speed and 65dB at its highest speed. 

There are a few drawbacks to consider. At this point, there’s no Amazon Alexa or Google Assistant integration. And unlike other washable pre-filters, you’ll have to replace the one in this model every couple months in addition to the main PECO filter. That’s on top of the sizable up-front investment. 

Best for Every Season: Dyson Pure Hot + Cool (HP02)

What We Like
  • Great for allergies and asthma

  • Heats or cools while purifying

  • Tilts and oscillates 180 degrees

What We Don't Like
  • Expensive

  • Less advanced than the Dyson HP04

Another option for purifying with heating or cooling is the Dyson HP02 model, which is an older and slightly smaller version of the HP04. While many of the features overlap (voice assistant support, Wi-Fi connectivity and app access, quiet mode, and heating and cooling functions), the HP02 lacks a handful of important advancements for not much less. But if you don’t need certain bells and whistles like 350-degree rotation or the Diffused mode, this model still offers a lot of value for a slightly less costly investment.

Most notably, the HP02 doesn’t feature the same advanced HEPA filtration system of the HP04, but the second-generation Dyson glass HEPA filter is still poised to reduce 99.97 percent of allergens. And while you won’t get 350-degree rotation, the HP02 does offer manual tilting and 180-degree oscillation similar to most fans. It’s also backed by approval from the Asthma and Allergy Foundation for its allergy-fighting filter, Parent Tested Parent Approved for its blade-free design, and Quiet Mark-approved for its low-volume operation, especially in night mode.

Like the Dyson HP04, you’ll be able to schedule a purifying schedule from the provided remote control or through the app, check area quality stats near your home to make setting adjustments, and get an update on your indoor air quality. And if you’d rather not use the remote or misplace it, its curved and magnetic design makes it easy to rest right on top of the purifier so it’s always there when you need it. 

Best for Allergies: Honeywell HPA250B Bluetooth Smart True HEPA Allergen Remover

What We Like
  • Covers rooms up to 310 square feet

  • VOC sensor

  • Allergen purifying mode

What We Don't Like
  • App operation limited to 30 feet

  • Pre-filter needs replacement

Most smart air purifiers use Wi-Fi as the sole connectivity option. In the case of the Honeywell HPA250B, Bluetooth is the name of the connectivity game. This Bluetooth Smart- (or Bluetooth 4.0) enabled device can instantly pair to your smart device as long as you download the Honeywell companion app. While that means you'll be limited to using the app as a remote while you’re at home, there is a handy VOC (Volatile Organic Compound) sensor that detects when your smartphone is within range (about 30 feet) and turns the device on. 

Of course, you can handle any scheduling details through the mobile app, including enabling the allergen auto-set feature that adjusts the speed according to pollen and mold allergy reports in your area. When you’re at home, you can also operate the machine directly from the menu on the top of the device. Other useful modes include the Germ option to tackle cold- and flu-causing microbes and the most powerful (and loudest) Turbo mode for rapid filtration. All in all, this isn’t the costliest air purifier, but do anticipate a modest filter replacement schedule to cover two true HEPA filters once a year to successfully capture 99.97 percent of microscopic allergens and the odor-absorbing pre-filter, which needs to be replaced quarterly. 

Best Family-Friendly Model: Zigma Smart Air Purifier

What We Like
  • Whisper-quiet sleep mode 

  • Child lock

  • Supports Amazon Alexa, Google Assistant, and Siri

What We Don't Like
  • True operating capacity questionable

If you want to limit the chance of little ones or pets getting into your air purifier and changing settings, the Zigma Smart Air Purifier comes with a handy child lock feature to prevent any inadvertent tampering. It also comes with a convenient sleep mode that turns off the display and reduces sound to just 25dB, which is far quieter than a whisper. 

Another feature that’s friendly to everyone in the family is the multi-layer HEPA air filtration system. Like most filters, the pre-filter serves as the trap for larger particles such as pet hair and dander, the true HEPA filter then kicks in to eliminate 99.97 percent of microscopic pollutants ranging from dust to dander and pollen, and an activated carbon layer absorbs smoke and odors. The Zigma Smart Air Purifier also offers negative ion release for an air freshening boost and a UV light to kill bacteria. 

While there’s an onboard display, the smartphone app offers easy control of purifying mode, scheduling, fan speed, and air filter status, which also displays on the onboard menu. The app also provides a graph feature to show air quality trends. An added layer of smart connectivity is compatibility with Siri, Amazon Alexa, or Google Assistant to perform many of the manual functions you’d perform in the mobile app.

While the manufacturer says that the complete operating capacity is 1580 square feet, this is questionable considering the small size of the unit and lack of ultra-advanced filtration. It will be effective for a bedroom, office space, or living room, though.

Best for Small Spaces: Germ Guardian Wi-Fi Bluetooth Smart Voice Control Air Purifier CDAP5500

What We Like
  • Bluetooth and Wi-Fi connectivity

  • Voice assistant integration

  • More budget-friendly than other smart models

What We Don't Like
  • Scheduling not possible

  • Lights can be distracting at night

The Germ Guardian CDAP5500 is a small-space purifier that offers several smart features that come at a premium from other brands. The 167-square-foot coverage is certainly limited to one of the smaller rooms in your home or apartment, but this purifier uses a multi-step filtration process to keep air clean. The washable pre-filter captures bigger irritants like pet hair, a true HEPA filter reduces 99.97 percent of microscopic germs lingering indoors, the charcoal filter reduces odors, and the UV light adds a layer of germ-killing power against airborne contaminants. 

To maximize efficiency, the CDAP5500 employs SmartAQM, an air quality monitoring system that can automatically adjust fan speed based on air conditions—when you select the automatic speed mode. When you’re physically nearby, you can see the air quality indicator ring on the front of the unit, but that is also a drawback if you’ll be sleeping in the same room with this air purifier. The display lights can’t be turned off and operation can’t be scheduled beyond setting a timer for shut-off between 1 to 8 hours. Those slight downsides aside, you’ll get flexibility with shorter range Bluetooth or remote Wi-Fi connectivity and Alexa or Google Assistant voice control to check on air quality, make timer adjustments, or check on HEPA filter and UV light replacements. 

Final Verdict

We chose the Dyson Pure Hot+Cool HP04 Purifying Heater + Fan as our number-one overall pick for the best smart air purifier. While it’s an air purifier first and foremost, its added space heating and cooling functions, quiet operation, and stylish design up the value in unique ways that help justify the asking price. The RabbitAir MinusA2 Ultra Quiet Air Purifier comes in a close second considering its generous range and advanced, multi-step filtration and purification technology, and the added bonus of space-saving, thanks to a wall-mountable build.

About our Trusted Experts

Yoona Wagener reviews a variety of wearables, peripherals, and tech gadgets for Lifewire. Always looking for tech to simplify and enhance life at home, she currently uses air purifying products from BlueAir and Tenergy to reduce household allergens. 

What to Look for in Smart Air Purifiers

Size and range – Whether you want to target a single room or a specific corner of an open-concept living area, you’ll need a model that physically fits your layout and offers the full range you’re looking for. Larger or more advanced models often need a bit more space to accommodate. Some smaller models are capable of handling well beyond their build, but most tend to have shorter ranges. In either case, if you’re looking for portability, consider weight, handles, and wheels that offer movement flexibility to purify certain rooms over others during certain times of the year (weather changes, allergy season, etc).

Connectivity – Many smart air purifiers offer multiple ways to interact with and control settings. Physical displays/touchscreens and remote controls are great for quick-touch access when you’re at home, but companion apps increase convenience by allowing remote access as well. While Wi-Fi connectivity on a 2.4Ghz frequency is the standard, some models provide shorter-range connections over Bluetooth when you’re at home. Models with both Wi-Fi and Bluetooth offer the most range and flexibility depending on when you’re near, at, or far from home. Voice control via your favorite smart assistant could be another draw for remote access or checking on air quality from another room. Smart air purifiers often offer Amazon Alexa and Google Assistant compatibility, but Siri support is a bit more limited. 

Filtering technology – If you have specific concerns such as seasonal allergy prevention or reducing pet hair and dander, consider models that are targeted to meet those needs with specialized filters or multi-stage true HEPA filtration. UV light technology and carbon-activated components provide added filtering, odor absorption, and germ-eliminating power, and newer technologies from brands including Dyson and Molekule offer their own unique cleaning appeal. Whether you choose a more traditional filter/purifying system or a more innovative approach, you’ll also want to consider the cost of maintenance with replacement filters and other accessories.