12 Best Smart Air Purifiers (Review) In 2021
- The Best Smart Air Purifier
- 1. LEVOIT LV-PUR131S Smart Wifi Air Purifier
- 2. Hathaspace Smart True HEPA Air Purifier
- 3. RabbitAir MinusA2 Smart Air Purifier
- 4. NASH Smart WiFi Air Purifier
- 5. Coway Airmega 400 Smart Air Purifier with
- 6. RENPHO HEPA Smart Air Purifier
- 7. TENDOMI WiFi Smart Air Purifier
- 8. Elechomes KJ200-A3B Pro Series Air Purifier
- 9. Winix AM90 Wi-Fi PlasmaWave Air Purifier
- 10. Inofia Air Purifier
- 11. Germ Guardian Smart Voice Control Air Purifier
- 12. Dyson Pure Cool DP04-HEPA Air Purifier
Now, more than ever, it is so important to keep the air inside your home and office clean and free of germs, pollutants, dust, pollen, smoke, and mold. You may not realize how dirty the air can be inside, and this dirty air can have severe effects on your health if you do not get it under control. Volatile organic compounds (VOCs), which are emitted into the air in the form of a gas, can have some quite scary effects on your body; these volatile compounds, emitted into the air as a result of using aerosol sprays, paints, office equipment, pesticides and much more, can cause damage to your liver and kidneys, as well as your central nervous system. Without even realizing it, you can be breathing in these dangerous volatile organic compounds!
To keep your air free of these and other menaces to your health, it is worth investing in a smart air purifier that helps clean the air. Air purifiers are also ideal for those who suffer from allergies, asthma, and similar breathing problems, as they notice a reduction in these issues due to cleaner air, free of pet dander, dust, and other common allergens. Bigger units look similar to portable air conditioners and are controlled like smart air conditioners, but their purpose is completely different. This guide will review the best smart air purifiers on the market, helping you make the best choice while answering some common questions associated with air purifiers.
The Best Smart Air Purifier
Suitable in rooms up to 900 sq. ft.
H13 True HEPA filter
Controlled with smartphone app
Schedule purifying sessions
Energy Star certified
Suitable for rooms up to 900 sq. ft. and using a three-stage filtration system paired with the true HEPA filter, the LEVOIT LV-PUR131S Smart Wifi Air Purifier removes dust, pet dander, and allergens from the air as well as reducing smoke and others odors that may linger in the air. Setting up and using this smart Wi-Fi air purifier is so simple! When you connect to Wi-Fi, you enable all control to take place from the smartphone app, VeSync, from home or on the go. The app allows you to switch between the two modes – auto and sleep – and set timers and schedules to maintain clean air quality. With a quick glance at the app, you can check your level of air quality, the color coded system will indicate whether your air requires purifying. You can also use voice commands with Amazon Alexa or Google Home Assistant to increase fan speed and switch your purifier on and off.
There is no compromise when it comes to getting a good night’s sleep and purifying your air! This air purifier, when in sleep mode, runs almost silently, at just 27 dB. The large activated carbon filter and H13 True HEPA filter with three fan speeds help purify the air 30% faster and more efficiently than other models. This Energy Star certified model measures 21.6 x 17.5 x 10 inches and weighs 15.17 pounds.
Pairs with Alexa or Google Assistant
Easy to use
Track filter life
Great for those with allergies
Expensive replacement filters
Filters must be replaced often
Not all features work with Alexa
Still need to dust frequently
Suitable for rooms up to 350 sq. ft.
Air quality sensor
5-in-1 filtration system
True HEPA filter
Activated carbon filter
If you are looking for a whisper-quiet air purifier, the Hathaspace Smart True HEPA Air Purifier does just the job while still effectively purifying your air and eliminating odors. The five-in-one filtration system features a cellular activated carbon filter to remove volatile organic compounds from the air and a True HEPA air filter that helps remove up to 99.7% of allergens, pet dander, dust, and pollen.
This air purifier has an automatic air quality sensor that will measure your air quality and adjust its fan speed as required when in auto mode; the air quality level is displayed on the front of the unit with a color system (red, yellow, or green) so you are able to always assess your air quality. Operate this air purifier with ease by using the remote controller. This model measures 13.5 x 7 x 19.5 inches, weighs 12 pounds, and includes a two-year warranty.
20 dB sleep mode
Good for use in smokers’ home
Filters expensive to replace
Air sensor works best on max setting
No Wi-Fi connectivity
Filters needs to be replaced often
Suitable for rooms up to 815 sq. ft.
Connects to Wi-Fi
6 stage filtration air purification
Uses a BioGB HEPA filter
5 fan speeds
Wall-mounted or free-standing
Our stylish and sleek premium pick, the RabbitAir MinusA2 Smart Air Purifier, is designed with you in mind! This smart air purifier allows for a customizable front panel, so you can choose a purifier that blends with your home while cleaning the air, keeping it free of dust mites, allergens, pet dander and reduces bad odors such as smoke and cat litter. Ideal for rooms up to 815 sq. ft., this purifier can standalone or is capable of being wall-mounted. By using a six-stage filtration system, using filters like the BioGS HEPA filter and a charcoal-based activated carbon filter, and five fan speeds, this smart purifier can filter your room twice in an hour when used on the highest setting.
Run your air purifier while you sleep or watch TV, as it runs ultra-quietly, just at 20.8 dB on its lowest setting and 45.6 dB on the highest setting. Being wirelessly controlled gives you the power to change fan speeds, power it on or off, and create a schedule when used with the Rabbit Air App on your smartphone; you can also use voice commands with Alexa, such as adjusting the settings. This smart air purifier will also transition itself into sleep mode when it is in a dark room and re-adjust its settings when in a light room for more powerful air cleaning. This Energy Star certified model measures 7 x 21.4 x 20.25 inches and weighs 19.4 pounds.
Runs quietly on lower fan speeds
Automatic sleep mode
Can be wall-mounted
Filters last for two years
Works with Alexa
Looks a bit unlike other air purifiers
Best for rooms up to 350 sq. ft.
3 modes (auto, manual or sleep)
3 fan speeds
Uses a True H11 HEPA+ filter
With three-speed settings and three different modes, the NASH Smart WiFi Air Purifier is ideal for rooms up to 350 sq. ft. Featuring a True H11 HEPA+ filter, you will notice a much higher air quality; when in use, this air purifier recycles the air up to five times per hour. Like most models, you must replace the HEPA filter every six months or so, but the washable filter included with this model helps extend the HEPA filter’s life.
Use either the smartphone app or voice control with Alexa or Google Home to operate your smart air purifier. The app provides you with a range of features to help improve your air quality, such as the option to set up a schedule or automation to always keep your air clean. The quiet auto mode runs almost silently, at 20 dB, and can adjust itself to match real-time, so the fan speed will increase during busier times of day when the air is likely to get dirtier. With conveniently positioned carrying handles on either side of the unit, you can move the air purifier from room to room to make sure your home benefits from clean air everywhere. This model measures 13 x 7 x 20 inches, weighs 14.97 pounds and includes a two-month warranty.
Side handles for portability
Can be used with Alexa or Google Home
Schedule air purifying sessions
Doesn’t work with 5GHz Wi-Fi connections
Setup is challenging
Replacement HEPA filters are expensive
Very loud on max speed
Suitable for large rooms, up to 1560 sq. ft.
LED indicator for air quality
Uses a True HEPA filter
5 fan modes
For air purifying coverage of rooms up to 1560 square feet, the Coway Airmega 400 Smart Air Purifier is your best option for large rooms. To monitor your indoor air quality in real-time, there is an LED ring displayed on the front of the unit that changes color deepening on air quality; with blue meaning the best air and red being unhealthy air, with a high presence of allergens, dust, pollen and other unwanted particles in your air. This model uses a Max2 Filter which is composed of activated carbon and a True HEPA filter for high-performance air cleaning. The filter indicator will alert you when the micro-mesh pre-filter needs cleaning and when other filter replacement is required.
There are five fan modes including smart and sleep; in smart mode, this air purifier uses three settings to adjust accordingly based on the current quality of the air. At its highest setting, the maximum output of sound is 43.2 dB. This box-shaped designed air purifier measures 14.8 x 14.8 x 22.8 inches and weighs 24.7 pounds, so is ideal as a permanent fixture in your larger rooms. There is five-years manufacturer’s limited warranty included.
Easy to clean pre-filter
Easy to operate
Draws in air from both sides
1, 2, 4 and 8 hour timers
No Wi-Fi connectivity
No remote control
Expensive replacement filters
Air quality sensor can be unreliable
Takes up a lot of space
Ideal for rooms up to 301 sq. ft.
Auto air quality sensor
5 stage filtration
Features a True HEPA filter
Controlled via smartphone app
If you are in search of a smart air purifier that is capable of measuring the air quality and adjusting its settings accordingly, the RENPHO HEPA Smart Air Purifier ticks that box! Best for rooms no larger than 301 square feet, this air purifier uses a premium five-stage filtration system to capture and remove both large and small particles in your air, such as pet dander, pollen, dust mites, allergens, and volatile organic compounds. The activated carbon filter helps reduce unwanted odors in your home and the True HEPA filter removes those particles from the air that can affect your health.
Control your air purifier all from your smartphone with the RENPHO app; create schedules, set timers, and check filter life with ease, whether you are home or away! The quiet sleep mode, which operates at 35 dB, guarantees you a peaceful sleep while ensuring that the quality of your air is maintained in your room. The smart key-lock function helps avoid curious children from adjusting any settings. This model measures in at 13.98 x 8.11 x 20.87 inches and weighs 16.27 pounds; it also includes a one year warranty.
Quiet sleep mode
Set timers and schedules
Great for people with allergies
Pairs with Alexa and Google Assistant
Low filter life
Setup takes a while
Loud on highest setting
Cannot be used with 5GHz connections
Best for rooms up to 214 square feet
Uses a True HEPA filter
Perfect for the office or home in rooms up to 214 square feet, the TENDOMI WiFi Smart Air Purifier allows for 24-hour scheduling to remove allergens, capture pet dander, dust and trap mold and germs from the air. With its unique oscillation of up to 90 degrees and choice of four speeds, this model uses a True HEPA filter to keep your air healthy and clean. Operating at its lowest setting, this super quiet level of 25 dB, means you can get on with your day undisturbed.
The LED touch panel allows for easy operation, but with its Wi-Fi connectivity, you also have the option to control it and set schedules or timers and monitor the HEPA filters lifespan. Compatible with both Alexa and Google Home Assistant, you can also use voice control to turn your air purifier on or off. This unit measures 6.38 x 6.38 x 16.02 inches and weighs just 3.63 pounds making it perfectly compact and portable. You will also receive a five-year warranty.
Compatible with Alexa and Google Home
Track filter life
Set schedules and timers
Only works with 2.4G Wi-Fi
Only works with Wi-Fi connection
Replacement filters can be hard to find
Weak fan power
Suitable for large rooms up to 325 sq. ft.
Uses a True HEPA filter
Filter replacement alert
Designed with larger rooms up to 325 square feet in mind, the Elechomes KJ200-A3B Pro Series Air Purifier uses an activated carbon filter and a True HEPA filter to clean the air in your home. By recycling the air in the room in which this unit is placed up to five times per hour, you will notice a difference in your air with it being cleaner and free of common allergens found in the air like pollen and dust, as well as pet dander.
Use one of the three modes – manual, auto, or sleep – and set your preferred fan speed. Control the quality of your air whether you are at home or on the go by using the Elechomes Air Purifier App; use the app to switch between modes, set timers, and schedules, and monitor air quality. You can also turn on the handy child lock to avoid curious children pressing buttons and altering the modes and fan speeds you have set. With convenient built-in handles positioned on either side, this unit measuring 13.9 x 8 x 23 inches and weighing 11 pounds, can be easily moved from one room to the next. An 18-month warranty is included.
Child lock function
Sleep mode, 30 dB
Can be hard to connect to Wi-Fi
Highest fan speed is loud
Air quality sensor sometimes inaccurate
Filter replacement is expensive
Ideal for large rooms up to 360 sq. ft.
PlasmaWave technology to clean your air
Uses a True HEPA filter
Smartphone app controls the unit
Using four-stage filtration, the Winix AM90 Wi-Fi PlasmaWave Air Purifier combines the use of carbon filters with True HEPA filters with patented PlasmaWave technology that neutralizes dust, dirt and allergen particles at a molecular level. Best for use in medium to large rooms up to 360 square feet, this Wi-Fi-enabled model allows you to control the purifier from Winix Smart App to not only monitor your indoor air quality, but also outdoor air quality; you can also set timers and create schedules from the app.
By using the app you are also able to enable Amazon Dash Replenishment which will ensure that you never run out of replacement filters. You can also use voice commands with Amazon Alexa and request information about the quality of your air. This air purifier measures 15.1 x 8.7 x 23.5 inches and weighs 16.5 pounds; it also includes a 90-day limited warranty.
Can be used with Alexa
Set schedules and timers
Air quality indicator status light
App doesn’t always work well
Hard to connect to Wi-Fi
Difficult to move around
Can’t be used with Google Assistant
For use in room size of up to 1056 sq. ft.
Dual filter – True HEPA and activated carbon
5 fan speeds
Runs quietly, between 27-52 dB
Constant air quality monitoring
The Inofia Air Purifier constantly monitors your air quality with its advanced sensor, displaying indoor air quality via an LED visual, perfect for large rooms up to 1056 square feet. With a choice of manual or auto mode with five fan speeds, you can expect this air purifier to reduce particles like dust, pet dander and hair, dirt and mold while eliminating foul odors.
Pairing both a True HEPA filter and an activated carbon filter, your indoor air quality will be significantly improved; the smart sensors monitor the air and when it picks up on changes, it will adjust the fan speed to clean the air. You can operate this model with the buttons on the front of the unit, but for further control, use your smartphone device to adjust your settings from the bath, bed or even the office! Built-in handles are positioned on either side of the unit so you can move it from room to room; this model measures 13 x 13 x 23.8 inches and weighs 23 pounds.
Can be controlled from your phone
Filter replacement indicator
Can only be used with 2.4G Wi-Fi
App can have glitches
App doesn’t update air quality info
Expensive replacement filters
Replacement filters can be hard to obtain
Great for rooms up to 167 sq. ft.
Activated carbon and HEPA filters
UV-C light to kill bacteria
Air quality monitor adjusts speed as needed
If you are looking for a sleek design that does not lack in clean air delivery rate, the Germ Guardian Smart Voice Control Air Purifier fits the bill. The HEPA air filter captures airborne particles in the air like germs, dust mites, pollen, allergens, dust, and pet dander, and the optional powerful UV-C light then kills airborne pollutants and bacteria that can harm your health. The charcoal filter reduces bad odors that can exist in your home. Ideal for medium to large rooms up to 167 square feet, this model offers five-speed settings, including an ultra-quiet mode.
With both Wi-Fi and Bluetooth connectivity, you can control your air purifier with your smartphone and receive updates and alerts about the quality of your air. The Germ Guardian is also compatible with both Amazon Alexa and Google Home, so you can use voice commands to control your air purifier, instructing it to clean the air. This model measures in at 8.2 x 10.5 x 29.5 inches and weighs 11.6 pounds. You will also receive a five-year limited warranty with your purchase.
Voice control with Alexa or Google Assistant
Energy Star certified
Filter and UV lamp replacement reminders
Pet Pure filtration
Particle monitor sensor can be inaccurate
Setting up the app can be hard
Limited voice commands
No washable pre-filter
No night/sleep mode
Great for large rooms
360-degree filtration system
Uses a sealed HEPA filter
Magnetized remote control
The Dyson Pure Cool DP04-HEPA Air Purifier features a 360-degree filtration system to make sure your air is free of pollutants, dust, dirt particles, allergens, and pet dander while keeping you cool. By using a sealed HEPA filter, this smart purifier is great for any large room in your home. This unit oscillates and you have a choice of four oscillation settings to help circulate air throughout the room in which it is placed. With a choice of modes such as diffused mode, auto mode, and night mode with dimmed display, you can select the one that is most suitable for your needs.
Its LCD display will show you the current air quality level and uses its smart sensors to determine which particles are of high volume in your air. Use either the magnetized remote control, which can be stored on top of the unit, or the Dyson Link app to control your air purify and adjust its settings. You also have the option to use voice commands when you pair your air purifier with Amazon Alexa and Apple Siri. Perfect for tabletops, or to stand alone, this purifier measures in at 8.77 x 13.85 x 27.2 inches and weighs 10.18 pounds.
Works with smart home systems
Energy Star certified
Night mode dims and runs quietly
Set timers and schedules
Takes a while to connect to Wi-Fi
No detailed filtration history
Replacement filters can be pricey
Large power block, blocks other outlets
Fan is not great for cooling
Features To Consider With Smart Air Purifiers
There are a range of different sized air purifiers, some that are box-shaped, whereas others are tower-like. Depending on where you are placing your air purifier, you will want to think about the size of the unit. Most air purifiers are designed with the home in mind and have a sleek look to suit many environments. If you are tight on space, you may want to consider air purifiers that can be wall-mounted, helping save space while giving you the best air quality.
Many people like to run their air purifiers at night, so the best air purifier will be one that either consistently runs quietly or has a quiet/sleep mode option that operates at less than 30 dB. At the highest setting, most air purifiers will run at about 50-60 dB, which is about the level of normal conversation. For those setting up their air purifiers in living areas or office spaces should also consider this noise level; most WiFi air purifiers will have smart features that allow you to set timers or schedules, so you can always have it run at a lower setting while you are around, and then switch to being more powerful when the room is no longer in use.
The best air purifiers come with apps that can be used from your smartphone to operate it. These apps generally have a far wider range of smart features that you cannot control from the device. If you want to be able to track the life of your HEPA filters, review cleaning history, monitor air quality levels and make adjustments to fan speeds and modes, having an air purifier that has an app is appealing to most people.
There are so many air purifiers on the market today, many of which enable Wi-Fi connectivity. This connectivity allows for the app to be used, however, some air purifiers can only work when connected to Wi-Fi, so it is important that you look into that if you do not wish to use an app. Wi-Fi connectivity allows you to connect your smart air purifier to your home connection, which can then be managed from your smartphone whether you are at home or away from it. Always check the connection required for Wi-Fi, as some models only support 2.4G.
The best smart air purifiers have a great filtration system comprised of several filters, but most importantly a HEPA filter and an activated charcoal filter to reduce the number of pollutants in the air such as VOCs, dust, allergens, pet dander and mold spores while deodorizing the air to keep it smelling fresh and clean. The pre-filter is another important filter to consider, as you will need to clean this, so one that is washable is ideal. A great feature that your smart air purifier may have that helps you keep on top of your filters is a filter replacement alert that will advise you when a new filter is required.
Air Quality Monitor
The best air purifiers use advanced sensors to monitor the air quality and will display this, typically with a color-coded system, either on the front of your air purifier or through the app. Some air purifiers feature a smart auto mode which will allow the unit to adjust its fan speed and settings to suit its surroundings; so, if you have just cooked and there is smoke in the air, or perhaps painted your nails, your purifier will detect a change in the air quality and will increase the fan speed to pull in the dirty air to be purified.
If you're thinking about purchasing home gadgets specialized for air quality control check out our buying guide for best air quality monitors. For a device that can control air humidity in your home, take a look at our selection of humidifiers and dehumidifiers.
Prior to making any purchasing decisions when it comes to smart purifiers, you must first consider the size of the room you are wanting to purify. Some of the best large room air purifiers cover many square feet, making them ideal for medium to large rooms. On the other hand, some air purifiers are smaller and are best for small offices or bedrooms. Always determine the size of your room first and check that against the specs of any of the air purifiers you are considering. Air purifiers that are placed in a room too large will struggle to clean the air will not be able to recycle the air as many times (if at all) as they advertise.
While the best air purifiers reduce the amount of dust in your home, you are likely to still have to do a bit of dusting every now and then. Maintenance of the air purifier itself is also required, as you will need to clean the pre-filter as well as replace the other filters when they have come to the end of their life. Depending on how often you use your purifier and the settings it is on, you are likely to have to change your filters anywhere between every six weeks to every six months.
If you have curious children or pets that could accidentally adjust settings on your air purifier, it is ideal for the unit to have the option of a child lock, which will prevent any buttons from being able to be pressed. Many Wi-Fi enabled purifiers may also offer the option of being able to connect to one of your smart home devices such as Amazon Alexa or Google Home Assistant to use in conjunction with voice commands. Being able to set schedules and timers is also ideal as you can always stay on top of keeping your air clean, perfect for people who suffer from allergies and asthma.
Smart Air Purifier FAQ
Q: Do smart home air purifiers really work?
Yes! They are capable of trapping up to 99.97% of airborne particles that could be dangerous for your health. When using an air purifier, you will notice a change in the quality and smell of the air in your home. Those who suffer with allergies will also notice an improvement when running an air purifier frequently.
Q: Can smart air purifiers detect carbon monoxide?
While smart air purifiers do not have a display or reading for carbon monoxide levels like carbon monoxide detectors, they are capable of reducing carbon monoxide that may be present in your air. The activated charcoal and True HEPA filters that are typically used within the air filtering system of an air purifier does help in reducing these levels.
Q: What is a smart air filter?
A smart air filter includes sensors that helps you track the life of your filter; it uses actual air flow and the amount of usage to determine the life you would receive from the filter, giving you an indication of when the filter would need to be replaced.
Q: Does every room need a smart air purifier?
No, it is not typical that people purchase air purifiers for every room in your home, but find the best air purifier for the popular rooms in your home, such as the living area and bedrooms. So, for some people, this may mean three air purifiers, whereas those with more children may require more depending on the number of bedrooms.
Q: Should I leave my smart air purifier on all day?
Yes, it is a good idea to leave your purifier running all day. The best air purifier will include an auto mode, which allows the fan to adjust its speed depending on the quality of the air; this is the most economical, as it will go into a lower mode when the air is cleaner, and run efficiently until changes in air quality are detected, which will cause the fan speed to increase to clean the air. You can also set timers and schedules with some smart purifiers that allow you to choose when it is running; but, to maintain the cleanest air in your home, it is good to leave your machine running.
Q: Is it ok to leave a smart air purifier on all night?
Yes, in fact most air purifiers have a night mode so that they run much more quietly to allow you to have a peaceful night's sleep. LED displays will usually dim on most models when in night mode too, so you won't be disturbed. For those that don't want the hassle of having to switch between modes, some smart purifiers can auto-detect their surroundings and will power down into quiet/sleep mode when in a dark room.