Best smart air purifier


Are you looking to buy a home air purifier?

More specifically, are you searching for an automatic smart air purifier, WiFi air purifier, or even an Alexa air purifier with voice control?

If so, you’ve landed on the right page.

Below you’ll find a list of the best smart air purifier models that include WiFi and Alexa compatibility.

Our goal here is to help you find the top smart home air purifier that fits seamlessly into your modern lifestyle while also doing a good job at removing airborne particles.

Each automatic air purifier reviewed below has been well-researched by top experts and tested by thousands of consumers just like you who want cleaner air to breathe while also being able to control their device from a smartphone or their voice.

Disclosure: Home Air Guides is reader-supported. As an Amazon associate and affiliate for independent brands, we earn from qualifying purchases made through the links on our site. Learn more.

Best Smart Air Purifiers Reviewed in This Guide

Here’s a quick comparison chart showing the top smart air purifiers. We’ll cover each aspect of these units in the reviews section below, but this gives you an idea of what’s available and an easy way to compare them.

ImageAir Purifier DetailsPrice
Rabbit Air MinusA2 Air Purifier
  • Best overall smart air purifier
  • Filters: Pre-filter, Medium, BioGS HEPA, Customized, Activated Carbon, Ionizer
  • Control: WiFi and Alexa
  • Coverage: 815 sq. ft.
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AIRMEGA 400S Air Purifier
  • Best WiFi air purifier for large rooms
  • Filters: True HEPA, Activated Carbon
  • Control: WiFi and Alexa
  • Coverage: 1,560 sq. ft.
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Molekule Air Purifier
  • Best automatic air purifier technology
  • Filters: Pre-filter, PECO
  • Control: WiFi and Alexa
  • Coverage: 600 sq. ft.
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Dyson Pure Cool TP04 Air Purifier
  • Smart WiFi air purifier that doubles as a tower fan
  • Filters: True HEPA, Activated Carbon
  • Control: WiFi and Alexa
  • Coverage: 300 sq. ft.
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Blueair Classic 605 Air Purifier
  • Automatic air purifier with HEPASilent technology
  • Filters: True HEPA, (Activated Carbon optional)
  • Control: WiFi and Alexa
  • Coverage: 775 sq. ft.
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Levoit LV-PUR131S Air Purifier
  • Cheapest smart air purifier with app control
  • Filters: Pre-filter, True HEPA, Activated Carbon
  • Control: WiFi and Alexa
  • Coverage: 360 sq. ft.
Check Price
Rabbit Air MinusA2 air purifier

Best Smart Air Purifiers List

1. Rabbit Air MinusA2 Smart Air Purifier

If you’re looking for the best smart air purifier available, then this is it.

It has the most advanced air cleaning technology available as well as WiFi control and can be easily paired with Amazon Alexa.

What makes this smart home air purifier the industry leader for air purification is the 6-stage air filtration system that includes:

  1. Pre-filter: Traps the largest particles like hair and dirt.
  2. Medium Filter: Captures particles the next smaller.
  3. BioGS HEPA Filter: This is a longer-lasting True HEPA filter that captures 99.97% of particles down to 0.3 microns in size. It lasts up to two years before a replacement is needed.
  4. Customized Filter: Allows you to enhance the power of the unit to meet your specific air quality needs. (More details below.)
  5. Activated Carbon Filter: Reduces indoor odors caused by tobacco smoke, cooking, pets, bacteria, mold, and volatile organic compounds (VOCs).
  6. Ionizer: Boosts the air cleaning power by negatively charging the air to make particles easier to trap.

As for the customized filter option, you can fine-tune this automatic air purifier to enhance the protection against certain indoor pollutants, including:

  • Germ Defense Filter: For airborne bacteria, mold spores, and particles that carry viruses.
  • Pet Allergy Filter: For pet dander, pet allergens, and pet hair.
  • Toxin Absorber Filter: For extra protection against volatile organic compounds (VOCs) and other airborne chemicals.
  • Odor Remover Filter: For extra reduction in odors from pets, cigarettes, cooking, and mold.

Another feature you’ll like is that this is the only smart air purifier on the market that can be mounted to a wall.

The included wall-mounting kit gives you the option of hanging this air purifier up and out of the way so you can save on floor space.

Also, you can customize the front panel color and design to match your personal taste and style.

Finally, this WiFi air purifier covers the perfect amount of space too. It can clean the air in a room up to 815 square feet, which is more than enough for most people’s needs.

Dimensions: 20 x 21.4 x 7 inches
19.4 pounds
Warranty: 5-year limited

Check Price and Reviews

AIRMEGA 400S Air Purifier with 5-year warranty

2. AIRMEGA 400S WiFi Air Purifier

The Airmega 400S is the most powerful smart air purifier you can buy today in regards to both air cleaning capabilities and room size coverage.

This smart home air purifier can efficiently purify large rooms up to 1,560 square feet.

And it does it with these two filters:

  • Pre-filter: Traps the largest pollutants, like dust, hair, and dirt, in a fine micromesh material. This filter also works to extends the life of the main filter, called the Max2 filter.
  • Max2 Filter: This is a highly specialized filter that combines two air cleaning technologies in one:
    • True HEPA Filter: Captures 99.97% of ultrafine particles down to 0.3 microns in size. This eliminates contaminants such as allergens, mold spores, bacteria, and particulate matter (PM2.5).
    • Activated Carbon Filter: Reduces 99% of Volatile Organic Compounds (VOCs) and fumes such as NH3 and CH3CHO which are toxic to your health.

Every aspect of this automatic air purifier can be controlled wirelessly by the smartphone app or you can link it up with Alexa to get voice control.

With the app, you can monitor both outdoor and indoor air quality so you know how good or bad the air is around you everywhere.

You can also set up personalized air cleaning schedules and get filter change notifications delivered right to you.

The other top features you’ll enjoy include:

  • Air Quality Indicator: Know exactly how clean or polluted your indoor air is without grabbing your smartphone by looking at a colored ring on the front of the unit:
    • Blue= Good
    • Purple = Moderate
    • Pink = Unhealthy
    • Red = Very Unhealthy
  • Dual Sided Suction: Air is pulled into the unit from two sides to clean it faster and more efficiently. Other air purifiers only draw air in from one side.
  • Eco Mode: Saves on energy and extends the life of the internal filters. The air purifier automatically turns off when it senses that the air quality is good for 10 minutes or more. Once air quality drops, the unit will automatically turn back on again.
  • Quiet: Noise levels range between 22~52 dB. Only the highest speed is considered to be noisy.

Dimensions: 22.8 x 14.8 x 14.8 inches
24.7 pounds
Warranty: 5-year limited

Check Price and Reviews

Molekule Air Purifier

3. Molekule Automatic Air Purifier

Molekule air purifiers are truly one-of-a-kind.

Not only do these smart home WiFi air purifiers allow you to control the device from your smartphone and pair it up with Alexa, but you also get some of the most advanced air cleaning technology for your home or office space.

This air purifier brand is extremely popular because of its advanced air filtration technology that actually destroys—not traps—airborne pollutants at a molecular level.

It’s unlike any other automatic air purifier reviewed on this list because it uses proprietary PECO filtration technology:

  • PECO filtering shines a light onto a nanocatalyst filter membrane that’s coated with proprietary nanoparticles. This light-activated catalytic reaction on the surface of the filter allows the air purifier to break down pollutants of any size.
  • PECO technology destroys allergens, mold, bacteria, and viruses at their core so you have the cleanest, healthiest air to breathe.
  • PECO filtering can eliminate pollutants that are 1,000 times smaller than standard filters must meet to qualify as HEPA.

Additionally, this modern air purifier is designed for large rooms up to 600 square feet, so it can handle most rooms in the home and workplace.

Like the other air purifiers reviewed here, this unit allows you to control everything from a WiFi smart app.

You can change the fan speed settings, get a look at the indoor air quality, check filter statuses, set up custom schedules, and more.

There’s not much else you can ask for in a high-quality air purifier like this.

Dimensions: 12 x 8.26 x 8.26 inches
7.3 pounds
2-year limited

Check Price and Reviews

Dyson Pure Cool TP04 Air Purifier with LCD Display

5. Dyson Pure Cool TP04 WiFi Air Purifier

How would you like an air purifier that not only looks stylish in your room but also doubles as a fan to keep you cool in the summer?

And on top of that, what if you could have the best Alexa air purifier with voice control so you never have to touch a thing to get it to work?

If that sounds good to you, then you’ll want to strongly consider the Dyson Pure Cool TP04 smart home air purifier.

This unit is a unique gadget that acts as both an air purifier and a tower fan with a bladeless design.

And it can handle medium size rooms up to 300 square feet.

As for the air cleaning system, you get these two high-quality filters:

  • True HEPA Filter: Captures 99.97% of microscopic particles down to 0.3 microns in size.
  • Activated Carbon Filter: Removes volatile organic compounds (VOCs) and odors from cooking, pets, and smoke.

Some other nice features on this unit include:

  • LCD Display: This LCD screen on the front lower base of the unit shows you which particles and gases are currently present in the room, such as pollen, dust, bacteria, smoke, nitrogen dioxide, volatile organic compounds, etc. It’s a quick way to know exactly what pollutants are in your indoor air.
  • Oscillation: This unit has 350-degrees of oscillation so you can blow purified and cold air around the full radius of the room.
  • Backward Mode: The backward airflow mode lets you enjoy purified air without the air cooling function. This function is nice to have in the colder months when you don’t want cold air blowing on you.

As for the Dyson WiFi app, it lets you control every aspect of this device and includes all of the same benefits as the AIRMEGA 400S and Winix AM90.

All-in-all, this is a slick air purifier that’s hard to compete with. The only reason we ranked it as #3 on our list of reviews is because it’s not as powerful to cover a larger room size than our #1 or #2 picks.

But for the price and features, it’s a good air purifier to own.

Dimensions: 41.5 x 8.8 x 8.8 inches
10.8 pounds
2-year limited

Check Price and Reviews

Blueair Classic 605 Air Purifier with HEPASilent Technology

6. Blueair Classic 605 Automatic Air Purifier

The Blueair Classic 605 may not look as exciting as the other air purifiers reviewed here, but it’s still one of the highest-rated smart air purifiers you can buy today.

It handles large rooms up to 775 square feet and has wheels for you to move it from room to room if you’d like.

The true power behind this air purifier is the single-stage air purification system: that includes two features:

  • True HEPA Filter: Captures 99.97% of air airborne pollutants down to 0.3 microns.
  • HEPASilent Technology: This technology leverages electrostatic charge to enhance the mechanical filtration of the True HEPA filter.

For some reason, the Blueair Classic 605 air purifier doesn’t ship with an Activated Carbon filter. If you want odor control or filtration of VOCs, then, you’ll have to upgrade to their SmokeStop filter.

While this air purifier is a bit pricey for only having one type of filter, it is one of the only independently tested and verified air purifiers by the Association of Home Appliance Manufacturers (AHAM) for having a high Clean Air Delivery Rate (CADR) of 500 cfm at 5 Air Changes Per Hour (ACH).

Essentially, those lab tests ensure that this air purifier meets or exceeds a high-quality set of standards for air purification against particles such as dust, pollen, and tobacco smoke.

The WiFi smart app is also easy to use, as is setting it up with Alexa.

Dimensions: 26 x 20 x 13 inches
31 pounds
5-year limited

Check Price and Reviews

Levoit LV-PUR131S Air Purifier with 3-stage filtration

7. Levoit LV-PUR131S Smart Air Purifier

Our last WiFi air purifier recommendation is this affordable unit by Levoit.

It’s the lowest- priced smart air purifier you’ll find today that delivers superior air cleaning results for rooms up to 360 square feet.

The 3-stage air filtration system includes:

  • Pre-Filter: Traps the largest particles like hair, dirt, and bigger dust.
  • True HEPA Filter: Captures 99.97% of fine allergens, dust, pet dander, bacteria, and germs.
  • Activated Carbon Filter: Reduces household odors from pets, smoking, cooking, and chemical gases (VOCs).

The WiFi smart app is easy to set up and use and gives you full control over the unit. It also works as an Alexa air purifier with voice control.

You can set up personalized cleaning schedules and get filter change notifications delivered to your phone.

An Air Quality Indicator Light is on the top of the unit for giving you a visual cue of how good or bad the air quality is in your home or office. It changes from five colors between red (bad) to blue (good).

There’s nothing this automatic air purifier doesn’t have that most of the more expensive units include, except for a lower price tag.

Dimensions: 14.5 x 18.5 x 7.2 inches
Weight: 15.8 pounds
Warranty: 2-year limited

Check Price and Reviews

Automatic Smart Air Purifiers with WiFi & Alexa Buying Guide

If you want some additional information on smart air purifiers, WiFi air purifiers, and Alexa air purifiers, then this section can help.

Below you’ll find out more about what you can expect from these types of automatic air purifiers as well as some of the top features to consider.

We’ll also go over a few of the top benefits of owning these newer units versus non-smart-enabled air purifiers.

What is a Smart Air Purifier?

A smart air purifier cleans the air just like a normal air purifier and contains the same air cleaning technologies, but these units come with the added benefits of smartphone app control and real-time feedback of the air quality in your indoor environment.

Some smart home air purifiers also report each type of airborne pollutant that it detects in the room air. That way, you can know exactly what contaminants are inside your home or office.

Smart air purifiers are good for people who want an extra layer of modern control and feedback from their units.

The global smart air purifier market size is expected to reach USD 4.71 billion by 2025, according to a report by Grand View Research, Inc.

What is a WiFi Air Purifier?

A WiFi air purifier is the same thing as a smart air purifier that uses smart technology. Some brands just use the word “WiFi” instead of “smart” in their marketing of the units.

WiFi air purifiers and smart air purifiers use an Internet WiFi signal to connect the unit to a mobile device like a smartphone to give you app control.

A WiFi air purifier is different than a Bluetooth air purifier in the fact that it must have an Internet connection to sync the mobile device with the air purifier.

A Bluetooth air purifier doesn’t need a WiFi connection, as it connects directly to the air purifier through a Bluetooth signal.

What is an Alexa Air Purifier?

An Alexa air purifier is a unit that can be controlled by voice through any Amazon Alexa product, such as the Echo, Echo Dot, Echo Plus, or Echo Studio.

An Alexa air purifier works just like any other WiFi or smart air purifier but with the added convenience of voice control.

If you have a smart home, then an Alexa air purifier is a good choice to buy.

Best WiFi air purifier

Top Features to Consider on a Smart Air Purifier

Types of Filters

The best smart air purifier for your home or office will be one that includes the right types of filters for your needs.

To make sure you get a good air purifier, you’ll want to look for these top features:

  • Pre-filter: This simple mesh filter is essential for protecting the internal components of the air purifier. Without it, the unit could ingest large particles like dirt and hair which could damage the other filters. A pre-filter helps to extend the life of the True HEPA filter and Activated Carbon filter so they can work efficiently for a longer period of time.
  • HEPA Filter: This is the most advanced filter for capturing microscopic particles. And the True HEPA filter version is the best air filter for allergies because it’s the only one certified to trap 99.97% of particles down to 0.3 microns in size. That includes dust, allergens, pet dander, bacteria, mold spores, and visible smoke. Only the best air purifiers with WiFi capabilities include this filter. Lower-grade models have a less efficient type of HEPA filter called a HEPA-type filter.
  • Activated Carbon Filter: This is the only type of filter on an air purifier that can remove airborne odors, gases, and chemicals such as volatile organic compounds (VOCs). It’s extremely porous and traps the odor and vapor molecules on the surface of the filter. As room air continues to recycle through this filter, the more of those molecules it traps, which can lead to a fresher smelling room and one that has less toxic air to breathe.
  • PlasmaWave: This is a patented technology by the trusted brand Winix. You won’t find it from other air purifier companies. Winix uses PlasmaWave technology to safely break apart odors, allergens, chemical vapors, and other pollutants at the molecular level. It does this with water vapor and hydroxyl radicals. While this air cleaning technology is not required to purify the air, it does add an extra layer of protection that delivers more efficient results.
  • PECO: This is a proprietary technology by Molekule. PECO breaks pollutants apart at the molecular level. This process destroys microscopic pollutants like allergens, mold bacteria, viruses, and airborne chemicals at their core. The technology works by shining a light onto a filter membrane coated with nanoparticles. This light-activated catalytic reaction is what causes the destruction of organic matter as it passes through the system.

Air purifiers are recommended for people that live in polluted metropolitan areas and for those that deal with severe allergies, asthma, or other respiratory conditions. The best asthma air purifier can help to reduce airborne pollutants for healthier breathing as can the smart air purifiers reviewed on this page.

An air purifier can also be helpful in damp climates that promote indoor mold growth as well as for anyone who wants to reduce odors like cigarette smoke in their home.

Basically, if you look for a smart air purifier that includes the filters mentioned above, you can clear the air of anything that may jeopardize your health.

Fan Speeds

Most of the smart home air purifiers on the market come with at least three fan speeds, but some units offer five fan speeds or more.

Some air purifier manufacturers and brands label the fan speeds as “cleaning levels”. So don’t let that term confuse you when you’re comparing smart air purifiers.

As you’d probably guess, the higher fan speeds circulate the air in a room much faster, and therefore, clean it at a much higher rate.

One thing to keep in mind is that most automatic air purifiers are not noisy on their lowest fan speed settings. But at the higher fan speeds, they can have louder decibels and noise levels.

Automatic Air Purifier Mode

Best automatic air purifier

An advanced feature that many WiFi air purifiers have is an “automatic mode”. With this mode turned on, the air purifier will automatically detect the number of airborne pollutants and adjust the fan speed up or down to clean the air.

Automatic mode is a good feature to have because you don’t have to adjust the air purifier manually to keep the air clean.

Square Footage Coverage

As you saw in our reviews of the best WiFi air purifier models above, each unit can handle a different size room.

This measurement is called the “square footage coverage”.

When you’re buying a new smart air purifier, you want the device to have enough power to handle the size of the room you’re going to use it in.

For example, if you’re placing the air purifier in a living room that measures 15′ x 15′ then you’ll want an air cleaner with a minimum square footage coverage of 300 sq. ft. (15 x 15 = 300).

That means any of the smart air purifiers reviewed on this page would work for your situation because all of them can handle 360 sq. ft. or more.

When it comes to automatic air purifiers, you can’t really have an overpowered unit; only an underpowered one. That’s because the more powerful a large room air purifier is, the faster it’ll clean the air inside your room.

If you buy a new unit that doesn’t meet the demands of your room size, then it will run more often and at higher fan speeds, which can lead to increased energy costs and overall annoyance from noise levels.

So it’s good to always get the right air purifier room size for your needs.

Smartphone App

This one is self-explanatory but it’s still a feature you should consider on a new smart air purifier.

Some of the best air purifiers on the market have their own dedicated smartphone app for their products while others use a general app to sync a mobile device to their units.

For example, Winix air purifiers have their own Winix Smart App available on the Apple Store and Google Play Store. Blueair does the same thing with their Blueair Friend App.

However, the Levoit brand doesn’t have its own app. Instead, this manufacturer requires you to download the Vesync App to control their automatic air purifiers. This is not a bad thing though because the Veysnc App lets you control other smart home products from one central piece of software.

Alexa Voice Control

If you’re looking for the best Alexa air purifier, you’ll find it in the reviews above.

Each one of the smart air purifiers reviewed on this page allows you to connect it to an Amazon Alexa device.

This added feature gives you voice control.

Therefore, you can control most aspects of your air purifier through the sound of your voice instead of using the smartphone app.

An Alexa air purifier is a good air purifier to have because of that added convenience and is the top choice for any smart home.

CADR Rating

The CADR rating or Clean Air Delivery Rate is a measurement that tells you how well an air purifier can filter out three types of airborne particles: dust, pollen, and tobacco smoke.

This figure was developed by the AHAM (Association of Home Appliance Manufacturers) and is measured in cfm (cubic feet per minute).

Not all air purifiers include a CADR rating because this is independently verified data by the AHAM. And it costs money for an air purifier manufacturer to have this test performed and to place the certification on their products.

Some air purifier brands perform their own lab tests to ensure that their products meet the claims of filtering out those three pollutants: dust, pollen, and tobacco smoke.

The most effective air purifiers are units that have a CADR rating that’s at least 2/3 of the room size coverage.

For example, if an air purifier claims to purify a room up to 300 square feet, the CADR rating for each particle (dust, pollen, and tobacco smoke) should be at least 200 cfm. If the total square footage claim was 1,000 square feet, then it should be at least 666 cfm.

ACH Rating

The ACH or Air Changes Per Hour rating is a measurement of how fast an air purifier can clean the air inside a room.

The ratings you’ll find on smart air purifiers include:

  • ACH 2x: Cleans the air two times per hour.
  • ACH 3x: Cleans the air three times per hour.
  • ACH 4x: Cleans the air four times per hour.
  • ACH 5x: Cleans the air five times per hour.
  • ACH 6x: Cleans the air six times per hour.

Clearly, the higher the ACH rating, the more efficient the air purifier is at purifying the room.

How Do Air Purifiers Detect Air Quality?

Air purifiers detect air quality through built-in sensors that measure the number of particles in the air. These automatic sensors usually operate together with an infrared or laser beam.

The particles that pass between the beam and the sensors absorb some of the light and that causes the beam to dim. When the sensor picks up on this change, the air purifier makes a general estimation of the air quality.

Air purifiers can have any number of sensors to measure air quality. The most common types include a dust sensor, particular matter sensor, odor sensor, and volatile organic compound (VOC) sensor.

Essentially, smart air purifiers work the same way as the best air quality monitors available; however, these units actually filter the air in addition to reporting the level of air quality for each pollutant.

Do Air Purifiers Need to Be On All the Time?

Air purifiers do need to be on all the time to work most effectively. These units force air through their filters as a way to clean it. So leaving an air purifier on consistently is the only way to ensure good air quality in a room or home. When the air purifier is turned off, it will stop filtering particles from the air.

Smart air purifiers with automatic air quality sensors and real-time notification alerts can inform you about the level of pollutants inside the home. And even if those measurements are low for dust, allergens, smoke, VOCs, mold spores, etc. it’s still in your best interest to keep the air purifier running.

When the air purifier senses that the air quality is good, then it will drop the fan speed to its lowest setting to conserve energy. And once an increase in contaminants are detected, it will automatically increase the fan speed to quickly filter out those particles.

Benefits of a Smart Home Air Purifier

We’ve talked about the common list of air purifier benefits in another article, but buying a new smart air purifier offers a number of additional advantages to you as the user.

Here are just a few of those top reasons:

  • Real-Time Air Quality Monitoring: With a WiFi air purifier, you can see how good or bad the air quality is inside your home at every moment. And some units also tell you the exact airborne pollutants that it’s detecting and filtering out of the air. Air purifiers without smart capabilities don’t give you that type of feedback.
  • Scheduling: These types of air purifiers allow you to set up custom schedules to turn the unit on or off throughout the day and week. You can also adjust fan speed settings so that the air purifier will run at lower speeds when you want it to (i.e. while you’re asleep).
  • Filter Change Notifications: All air purifiers must have their filters changed to stay effective. And with a smart home air purifier, there is no guessing for when to change the filters. That’s because a filter change notification is pushed to your mobile device through the app.
  • Voice Control: If you want to take your air purifier to the next level, you can sync it up with Alexa and have voice control. This gives you a completely hands-free operation and can add value to your life if you’re actively building a smart home.

Enjoy Your New Automatic Smart Air Purifier with WiFi & Alexa

Best Alexa air purifier

We hope you enjoyed this guide on the best smart air purifiers.

As you learned, the best WiFi air purifier can come with smart-enabled features or Alexa voice control. And the model you choose will depend on the level of convenience you want for your home or office.

As you compare the smart home air purifier units reviewed on this page, keep in mind how large or small the room size each unit can handle. And then pick the one that can meet or exceed your square footage needs.

By following that advice, you’ll get a good automatic air purifier that can do the most effective job at cleaning the air inside your home or office.

Avatar for Patrick Holmes

About Patrick Holmes

Patrick is a Senior Air Quality & Comfort Specialist. He conducts in-depth research and analysis for our product reviews and buying guides in order to offer expert recommendations for people who are seeking to improve their indoor air quality and comfort. (See Full Bio)