The 7 Best Smart Air Purifiers of 2020

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

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Editors' Choice
Best Overall
RabbitAir MinusA2 Air Purifier
Rated to clean the air twice an hour in rooms up to a spacious 700 square feet.
Runner-Up, Best Overall
Dyson Pure Link Air Purifier
Perfect for any season of the year, as it adapts to the weather.
Best Design
Airdog X5 Air Purifier
An elegantly built air purifier with brilliant green air filtration.
Best Smart Features
Levoit Smart WiFi Air Purifier
Compatible with Amazon’s Alexa digital assistant so you can control it with voice commands.
Best for Large Spaces
Coway Airmega 400S Smart Air Purifier
It can fully change the air twice in a room up to a whopping 1,560 square feet in size.
Best Splurge
Blueair Classic 605 Air Purifier
Leads the pack in air exchanges per hour at five.
Best New Technology
Molekule Air Purifier
Uses light to activate a chemical reaction that breaks pollutants down into harmless molecules.

Best Overall: RabbitAir MinusA2 Air Purifier

You tend to get what you pay for in terms of air purifier effectiveness, and that’s the case with the high-tech and high-quality Rabbit Air MinusA2. The SPA-700A model is rated to clean the air twice an hour in rooms up to a spacious 700 square feet, with the upgraded SPA-780A version covering 815 square feet. We highly recommend you opt for the “smart” model that can connect to your home Wi-Fi network, letting you use a smartphone app to control the device and monitor air quality stats from anywhere you have Internet.

The MinusA2 is powered by a unique brushless motor and uses a six-stage filtration system, starting with a washable pre-filter and a medium filter for dust and particles larger than 1 micron in diameter. Central to the process is a High-Efficiency Particulate Air (HEPA) filter—true HEPA filters set the standard for effective air purifiers, certified to remove 99.97 percent of particles at the hard-to-filter 0.3-micron size. The MinusA2’s “BioGS” HEPA filter, though, goes further by reducing the buildup of allergens and bacteria in it.

Next, you can choose a specialized custom filter based on your needs (Germ Defense, Odor Remover, Pet Allergy, or Toxin Absorber), followed by an activated carbon filter to reduce common odors. The last stage is a negative ion generator that emits a minimal amount of ozone gas, but you can turn it off to avoid the pollutant altogether.

The modern-looking device, measuring about a 20-inch square, can add a touch of style to any space, either standing on its own or mounted on the wall. You can even add custom panels with everything from Van Gogh’s Starry Night masterpiece to charming designs featuring Hello Kitty.

Runner-Up, Best Overall: Dyson Pure Link Hot + Cool Air Purifier

The Dyson Pure Hot + Cool Link is an excellent air purifier choice because, first and foremost, it’s a powerful and efficient air cleaning machine. Its filtration system includes a fan for the summer, heater for the winter, and a true HEPA filter. It’s great for large bedrooms or mid-sized living areas, but you might find it works well even for larger spaces. It also runs very quietly at any speed since it doesn't use spinning blades.

At the same time, this air purifier stands out by having some very unique smart features. It can connect to Amazon's Alexa for voice commands, as well as your smartphone using the Dyson Link app for real-time air quality reports and remote controls. There are also a host of other neat settings to tinker with, like automatic modes, a sleep timer, and night-time mode, all accessible on the LED display.

The Pure Hot + Cool Link is fairly compact with 8.7 x 6 x 24.9-inch dimensions, an eight-pound weight, and a tall handle. It can be easily moved from room to room, and it fits in nicely anywhere with its silver color scheme.

Best Design: Airdog X5 Air Purifier

For a product meant to be working in your living space 24/7, it helps if it’s pleasant to look at. The Airdog X5 is an elegantly built air purifier made from fireproof materials and has an aerodynamic five-stage method. It sports Ionic wind filtration technology to offer an extremely quiet experience which matches its beautiful design. But as good as it looks, the X5's premium design extends beyond aesthetics.

Its true HEPA filter meets the standard 99.97 percent removal of 0.3-micron particles, but can also catch odors, dust, smoke, pollen, pet dander, and viruses that might find their way into your lungs. The reusable filters are machine washable and don't degrade over time unlike most.

In terms of performance, the X5 has the power to handle large rooms, cleaning 1,400 square feet every hour, and 450 square feet three times an hour. There are four different wind speed modes to choose from, so you can't go wrong with the X5 in terms of versatility and power.

Best Smart Features: Levoit LV-PUR131S Smart WiFi Air Purifier

With Internet-connected “smart” devices reaching every corner of our homes, it’s no surprise that smart air purifiers are on the scene, too. Even though the always-on nature of most air purifiers makes remote control less necessary, you can still get a lot of convenient features from a device like the Levoit LV-PUR131S. It’s essentially the same as the popular base LV-PUR131 model, except you can connect it to your home’s Wi-Fi network (on the 2.4-GHz band only, not 5 GHz).

From the free VeSync app, you can turn the unit on and off, adjust the fan speeds, and set up timers and schedules to automate its operation. Real-time stats let you easily monitor the current air quality in your home and the status of your filter. It’s even compatible with Amazon’s Alexa digital assistant so you can control it with voice commands.

The LV-PUR131S handles its core air cleaning duties well, covering mid-sized spaces of up to 322 square feet. It processes air through a pre-filter, a true HEPA filter, and an activated carbon filter. There are three fan speeds that can be automatically adjusted based on the air quality, and a sleep mode that runs the fan at a whisper-quiet 27-decibel noise level for when you need your beauty rest.

Best for Large Spaces: Coway Airmega 400S Smart Air Purifier

Trying to get clean air in a large room or an open area in your home? You’ll need a heavy-duty air purifier, and Coway’s Airmega 400S is among the best of them. It can fully change the air twice in a room up to a whopping 1,560 square feet in size, doing so with HEPA-certified 99.97 percent removal of 0.3-micron particles. But you don’t necessarily have to use it in a space that size; it can also run four air changes per hour in a 780 square foot room for more thoroughly cleaned air.

The 22.8 x 14.8 x 14.8-inch Airmega 400S (available in white or a darker graphite color scheme) works by pulling in air from two sides and pushing clean air out from the top. At each side are a washable pre-filter and a Max2 filter that combines activated carbon elimination. Its fan can run in five modes, with “smart mode” automatically changing the fan speed based on the air’s needs.

There are no Internet-connected smart features in the Airmega 400, so make sure you get this 400S model, as it can connect to Wi-Fi for remote app control and monitoring.

Best Splurge: Blueair Classic 605 Air Purifier

For some, good everyday health depends on a powerful, reliable air purifier, and that’s where the Blueair Classic 605 is well worth the considerable investment. It’s one of the most efficient filtration tools around, protecting against gases, odors, fumes, and chemicals. Its HEPA filters are certified to remove 99.97 percent of ultrafine particles. That includes viruses, tobacco smoke, and volatile organic compounds (VOCs).

It can filter air five times per hour in a room up to 775 square feet, thanks to its electrostatic and mechanical filtration technology. Plus, its HEPASilent, so you'll completely forget it's doing its job effectively. Other features that add to the 605’s case as an ultimate air purifier include its timer and night mode (just download the Blueair Friend app), Amazon Alexa compatibility, child lock settings, and Energy Star certification.

It’s pretty hefty at over 30 pounds, but four caster wheels at the bottom make it easy enough to move around the house as needed. And if you bang into something while moving it, its durable steel body won't leave a scratch.

Best New Technology: Molekule Air Purifier

Building on research that began in 1995 with a scientist striving to tackle his son’s debilitating asthma, Molekule takes a different approach to air purification. Rather than using HEPA filters, Molekule’s patented photoelectrochemical oxidation (PECO) technology uses light to activate a chemical reaction that breaks pollutants down into harmless molecules. The process is meant to better eliminate mold, allergens, viruses, and bacteria. And no ozone emissions are involved.

Matching the innovative purifying technology is Molekule’s stand-out design, built with a sleek and solid aluminum canister and a leather strap for portability. Its cylindrical shape houses a 360-degree intake that pulls in pollutants from all around and delivers clean air evenly throughout the room, replacing the air once per hour in a 600 square foot space.

Molekule has modern technology behind the device’s operation as well, with a built-in touchscreen display along with Wi-Fi connectivity. The free app for iOS and Android lets you configure the purifier based on your space and lifestyle, as well as check the status of the replaceable pre-filter and PECO-filter. You can also switch between modes of operation, like dark mode, which turns off the light and makes the PECO-filter work like a more conventional filter.