The 7 Best Air Purifiers, Tested and Approved by The Spruce

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Best Air Purifiers

The Spruce / Chloe Jeong

Air purifiers can help remove particles like dust, dander, and pollen from the air in your home, which can be especially helpful if you have pets or houseplants or if you live in an older home. With so many different-sized models and types available, it's useful to know how effective they really are, what they sound like, and what features they have. For example, there are some air purifiers that are also humidifiers, some are portable, and others are made with pet owners in mind. You should also consider the size of the room or rooms you will use it in and the type of filter used.

In order to see how air purifiers worked in real-life settings, we tested some of the most highly-rated air purifiers on the market in our own homes. Our testers used these air purifiers for weeks at a time in different settings including bathrooms, living rooms, and bedrooms, in homes with and without pets. We asked our testers to then rate each air purifier across categories including set-up, design, quietness, features, and effectiveness on a scale of one to five. Our team then combined these testing results along with our own research of highly rated purifiers to make this list.

Here, the best air purifiers on the market based on our testing and research.

Our Top Picks

Best Overall

Blueair Blue Pure 311 Auto Medium Room Air Purifier

Best Overall

Blueair Blue Pure 311 Auto Air Purifier

Buy at Amazon

After 504 hours of testing, this popular purifier earned perfect scores in design, setup, and features.

dyson-ph01

Best Design

Dyson Pure Humidify+Cool PH01

Buy at Bed Bath & Beyond

Our tester especially appreciated this product's ability to display real-time air quality on the LCD display and in the app.

levoit-purifier

Best for Pets

LEVOIT Compact True HEPA Air Purifier

Buy at Amazon

This purifier noticeably improved the air quality in the tester's home—even with a shedding dog.

More To Consider

Best for Bedrooms

Rabbit Air BioGS 2.0

Buy at Amazon
Best for Larger Spaces

Honeywell True HEPA Allergen Remover

Buy at Amazon
Best for Medium Spaces

TruSens Air Purifier

Buy at Amazon
Best for Small Spaces

Coway Airmega 150

Buy at Amazon

Reviews

Best Overall: Blueair Blue Pure 311 Auto Air Purifier

4.6
Blueair Blue Pure 311 Auto Medium Room Air Purifier

Amazon

Our Ratings
  • Setup
    5/5
  • Design
    5/5
  • Noise Level
    3/5
  • Features
    5/5
  • Effectiveness
    4/5

Coverage Area: 388 square feet | Dimensions: 20.5 x 10.2 x 10.2 inches | Filter Type: HEPA and pre-filter | CADR Rating: 250 for smoke, 244 for dust, 250 for pollen | Smart Capabilities: No

What We Like
  • Three-part filtration

  • LED air quality monitor

  • Sleek design with five color options

What We Don't Like
  • Not adjustable

Stylish, simple to use, and relatively affordable, the Blue Pure 311 Auto Air Purifier is our best overall pick for air purifiers. Designed for medium-sized rooms, this air purifier aims to completely filter the air in a 388 square foot room every 12.5 minutes. Its three-part filtration system includes a fabric pre-filter that is available in five colors to complement your decor. Aside from its unique design, the fabric works to catch larger particles at the get-go in order to extend the life of the other filters. The second layer of filtration is the activated carbon filter, which is tasked with the job of removing pet and cooking odors, as well as small particles. The final inner layer, known as HEPASilent technology, is the filter that is intended to remove smaller particles including pet dander, dust, pollen, and more, and claims to help reduce more noise and energy than a typical HEPA filter.

To see how this air purifier lived up to the company's claims, enduring real-life odors and situations, our tester spent 504 hours over three weeks using it in her own home. She was particularly impressed with the modern design, which made it a welcome addition to her living room decor. Two of the tester's favorite features were the auto mode and LED light indicator. When set to auto-mode, the machine changes fan speed based on real-time air conditions, and the LED light changes color based on air quality.

According to our tester, the purifier removed strong food odors, and was quiet enough not to disturb her sleep, even with changing fan speeds. After weeks of testing, this air purifier received perfect scores in design, setup, and features. The tester did take two points off for quietness—although it didn't disturb her sleep, she noted a lighter sleeper might find the changing fan speeds distracting.

Blueair Blue Pure 311 Auto Air Purifier

The Spruce / Katie Begley

What Testers Say

"My husband suffers from seasonal allergies that can keep him up at night. He slept through without any stuffiness when the air purifier was running. Fortunately, it was quiet enough to let him enjoy his night’s rest as well."—Katie Begley, Product Tester

Best Design: Dyson Pure Humidify+Cool PH01

4.8
dyson-ph01

Courtesy of Dyson

Our Ratings
  • Effectiveness
    5/5
  • Design
    5/5
  • Size
    5/5
  • Ease of Cleaning
    5/5
  • Overall Value
    4/5

Coverage Area: 400 square feet | Dimensions: 8.6 x 6.1 x 36.5 inches | Filter Type: HEPA | CADR Rating: Not listed | Smart Capabilities: Yes

What We Like
  • Combines three functions into one

  • Monitors air quality in real time

  • Very quiet

What We Don't Like
  • Large footprint

  • Expensive

If you are in the market for a humidifier, fan, and an air purifier, look no further than the Dyson Pure Humidify+Cool PH01. The price tag may seem high, but keep in mind that you are getting three products for the cost of one in addition to many other useful features. This product features both a HEPA and an activated carbon filter that claims to capture 99.97 percent of allergens as small as 0.3 microns. It humidifies and circulates air in areas as big as 400 square feet, and alerts you to the air quality in real-time through an app.

After using this product in her home for a week, our tester noticed her bedroom's air quality felt more comfortable. She also noticed that the musty smell in the bathroom was gone and never returned. From her testing results, this multi-use product received perfect scores in performance, design, size, and maintenance, with a four in value based solely on the higher price tag. For our tester, the highlight was the app, which breaks down the air quality in your room and what pollutants are present—while that information doesn't make your air cleaner, it's definitely a feature data lovers will appreciate.

Dyson Pure Humidify+Cool PH01

The Spruce / Lindsay Boyers

What Testers Say

"I really liked that the Pure Humidify + Cool can automatically assess the air and turn off the humidifying function if necessary. I’ve had other humidifiers that continuously run, and you go from having a really dry room to one that feels damp and sticky. That was not the case with this machine."—Lindsay Boyers, Product Tester

Best for Pets: LEVOIT LV-H132 Compact True HEPA Air Purifier

4.2
levoit-purifier

Courtesy of Walmart

Coverage Area: 129 square feet | Dimensions: 7.9 x 7.9 x 12.6 | Filter Type: HEPA, activated carbon, pre-filter | CADR Rating: Not listed | Smart Capabilities: No

What We Like
  • Small footprint

  • Three-stage filtration process

  • Quiet operation

What We Don't Like
  • No air quality monitoring

With a simple design, three-stage filtration, and easy setup, the LEVOIT Compact True HEPA Air Purifier is a great affordable option, especially for pet owners. According to the company, the HEPA filter can capture 99.97 percent of airborne particles 0.3 microns in size including pet dander, smoke particles, and pollen. The pre-filter captures larger particles like pet fur and lint, while the activated carbon filter can help to neutralize smoke, odors, and fumes. While there are no smart capabilities, power-saving modes, or a timer, it does have a night light, filter replacement light, and three different speed settings.

To see how this purifier handled pet dander and hair, our tester used it over the course of a week in a bedroom with two people and her shedding Basset Hound dog. Even though it did not have a monitoring indicator, she noticed a big difference in the air quality when the air purifier was on versus the week after when it was not running. She said that without it running, "the room smelled mustier and we woke up with scratchier, itchier throats."

LEVOIT LV-H132 Compact True HEPA Air Purifier

The Spruce / Suzie Dundas

What Testers Say

"Since it’s small, the purifier is also subtle and likely won’t draw attention no matter the room it’s placed in. We wouldn't hesitate to recommend it to someone in a small space who doesn't have anywhere to "hide" it."—Suzie Dundas, Product Tester

Best for Bedrooms: Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier

4.7
Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier

Courtesy of Amazon

Our Ratings
  • Setup
    4/5
  • Design
    5/5
  • Noise Level
    5/5
  • Features
    4/5
  • Effectiveness
    5/5

Coverage Area: 550 square feet | Dimensions: 16.6 x 9.8 x 22.2 inches | Filter Type: HEPA, charcoal-based activated carbon, washable pre-filter | CADR Rating: 136 for smoke, 149 for dust, 162 for pollen | Smart Capabilities: No

What We Like
  • Minimalist aesthetic

  • Near-silent

  • Noticeably reduced odors

What We Don't Like
  • Expensive

If you are looking for a quiet, effective option for a bedroom up to 550 square feet, the Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier is a good one to consider. With a simple, clean design, this air purifier won't be an eyesore and claims to be almost silent, so it won't disturb your sleep—though our tester found that it does let off a soft white noise that some people might find helpful in lulling them to sleep at night. The three filtration layers include a washable pre-filter for large particles, the BioGS HEPA filter, and the charcoal-based activated carbon filter for smells.

After using this air purifier for three weeks in her bedroom and musty closet, our tester especially appreciated its minimalistic aesthetic, auto-mode, and ability to remove odors. Based on these factors, it earned perfect scores in design, quietness, and effectiveness. Because it doesn't have many smart features, our tester did take a point off for features.

Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier

The Spruce / Stephanie Vermillion

What Testers Say

"I can tell the auto-detection actually works because whenever someone new enters the room, it turns on to rebalance the air at the ideal setting. It’s almost like having an air-purifying robot that thinks, acts, and cleans on its own."—Stephanie Vermillion, Product Tester

Best for Larger Spaces: Honeywell HPA300 True HEPA Allergen Remover

3.5
Honeywell True HEPA Allergen Remover, 465 sq. Ft, HPA300

Amazon

Our Ratings
  • Setup
    5/5
  • Design
    2/5
  • Noise Level
    2/5
  • Features
    4/5
  • Effectiveness
    5/5

Coverage Area: 465 square feet | Dimensions: 9.25 x 20 x 22.25 inches | Filter Type: Pre-filter and HEPA | CADR Rating: Not listed | Smart Capabilities: No

What We Like
  • Very effective filtration

  • Designed for extra large spaces

  • EPA filters only need to be changed once a year

What We Don't Like
  • Large and heavy

  • Very loud—especially on turbo setting

One of the most highly-rated options on the market, the Honeywell True HEPA Allergen Remover is designed to be powerful enough for spaces up to 465 feet. It has a pre-filter to reduce odors and a HEPA filter to screen up to 99.7 percent of particles sized .3 microns or larger.

After the duration of a three-week in-home test, this purifier only scored a two out of five in design and quietness—our tester found that some of the settings were too loud to have conversations around, and the purifier itself is large and not designed to blend into your home's decor.

However, our tester gave it a perfect score for effectiveness because she found a notable difference in the air quality of her living room. So if you need a fix for a musty basement or you're comfortable running the machine when you're not in the room rather than constantly having it on, this pick is a good choice.

HPA300 True HEPA Allergen Remover

The Spruce / Suzie Dundas

What Testers Say

"The Honeywell HPA300 has an industrial look. It’s quite large and has horizontal plastic slats across the front. It’d be at home in a garage or office, but it’ll likely look out of place in most living rooms or bedrooms. Users who care about aesthetics will definitely find it challenging to discretely place."—Suzie Dundas, Product Tester

Best for Medium Spaces: TruSens Z-2000 Air Purifier

4.5
TruSens Medium Air Purifier with UV-C Light + HEPA Filtration

Amazon

Our Ratings
  • Setup
    5/5
  • Design
    5/5
  • Noise Level
    5/5
  • Features
    4/5
  • Effectiveness
    4/5

Coverage Area: 668 square feet | Dimensions: 12.6 x 11.61 x 25.39 | Filter Type: HEPA, carbon, UV, washable pre-filter | CADR Rating: 94.8 for smoke, 111.7 for dust, 117.2 for pollen | Smart Capabilities: No

What We Like
  • SensorPod reads air quality across the room

  • Four-step filtration process

  • Air feels noticeably fresher

What We Don't Like
  • Doesn't have smart capabilities

  • SensorPod needs to be plugged in

If you want to get a sense of the entire air quality of a whole room, not just the area around the purifier, we recommend the TruZens Z-2000. It comes with a separate air quality detector, the SensorPOD, that is meant to be plugged in across the room from the purifier. It then connects silently to it through Bluetooth, signaling in real-time when the air quality has gone down and adjusting accordingly. Aside from this helpful feature, it has a 360-degree HEPA filter, five fan speeds, and a convenient carry handle. It also has touch controls and timer and night modes.

After running it continuously for two weeks in her home, our tester felt a noticeable difference in the air quality, especially in her bedroom. When she used it in her office, she noted that it was so quiet it was not a distraction at all. Although she raved about the SensorPOD feature, she wished it was wireless so she could bring it to another room without the benefits being interrupted, which is why this pick scored a point lower for effectiveness and features.

TruSens Z-2000 Air Purifier

The Spruce / Lindsay Boyers

What Testers Say

"For air purifiers like this that promise to sense the air quality and adjust accordingly, I like to let them do their thing by running them mostly on auto. I turned the air purifier on in my office first thing in the morning, and let it run all day. Because it’s so quiet, it wasn’t distracting at all, even when I was deep in thought."—Lindsay Boyers, Product Tester

Best for Small Spaces: Coway Airmega 150

4.2
Coway Airmega 150

Courtesy of Amazon

Our Ratings
  • Setup
    5/5
  • Design
    5/5
  • Noise Level
    4/5
  • Features
    3/5
  • Effectiveness
    4/5

Coverage Area: 214 square feet | Dimensions: 7 x 14 x 18 inches | Filter Type: HEPA, carbon, washable pre-filter | CADR Rating: Not listed | Smart Capabilities: No

What We Like
  • Air felt noticeably cleaner

  • Lightweight and slim design

  • Three-stage filtration system

What We Don't Like
  • Requires manual control

For rooms up to 214 square feet in size, the Coway Airmega 150 is a great compact and lightweight option with a three-stage filtration system that includes a HEPA filter and a washable pre-filter. When in auto-mode, it reads the air quality in real-time and adjusts the fan speeds accordingly. Available in pink, green, and white, it also has easy-to-remove filters and a colorful LED display.

In order to see how this compact air purifier could handle large odors, our tester used it in her home for over a week, including placing it in the same room as her cat's litterbox. She was impressed by how well she felt it neutralized the odor and dust, made the room feel fresher, and how quiet it was on its lowest setting. One thing to note is that this air purifier does not come with a remote control or smart capabilities, which earned it a three out of five for features. It did get perfect scores on setup—our tester found it easy to set up with just one person—and design, since the boxy air purifier comes in a few muted tones and has a funky design that's a little bit vintage and a little bit modern.

Coway Airmega 150

The Spruce / Lindsay Boyers

What Testers Say

"I set the air purifier up in a room with a cat litter box to really test things out, and I was wildly impressed with how well it neutralized the musty smell and dust that often go hand in hand with having cats that do their business in a box."—Lindsay Boyers, Product Tester

Compare

Overall Rating Setup Design Noise Level Features Effectiveness
Blueair Blue Pure 311 Auto Medium Room Air Purifier
Best Overall:
Blueair Blue Pure 311 Auto Air Purifier
4.6
5 5 3 5 4
dyson-ph01
Best Design:
Dyson Pure Humidify+Cool PH01
4.8
5 5
levoit-purifier
Best for Pets:
LEVOIT Compact True HEPA Air Purifier
4.2
Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier
Best for Bedrooms:
Rabbit Air BioGS 2.0
4.7
4 5 5 4 5
Honeywell True HEPA Allergen Remover, 465 sq. Ft, HPA300
Best for Larger Spaces:
Honeywell True HEPA Allergen Remover
3.5
5 2 2 4 5
TruSens Medium Air Purifier with UV-C Light + HEPA Filtration
Best for Medium Spaces:
TruSens Air Purifier
4.5
5 5 5 4 4
Coway Airmega 150
Best for Small Spaces:
Coway Airmega 150
4.2
5 5 4 3 4
Final Verdict

Our best overall pick is the Blueair Blue Pure 311 Auto Air Purifier. Designed for medium-sized rooms, this air purifier is stylish, effective, and has three layers of filtration. If you have pets or are looking for a budget-friendly option, we recommend the LV-H132 Compact True HEPA Air Purifier. It works to reduce pet dander and odors and has a small footprint.

Dyson Pure Humidify+Cool PH01 Filter

The Spruce / Lindsay Boyers

How We Tested the Air Purifiers

For several weeks, our testers used these air purifiers in their own homes, putting them to the task of tackling pet dander and odors, strong food smells, and musty closets. They set them up in their offices and bedrooms to see how distracting the noise was to their sleep or work. They used them in their living rooms to see if they added to, blended in, or clashed with their decor. In several instances, they turned them off after a week to see if they could feel a noticeable difference in their air quality. We then combined their testing results with our writer's research to make this list.

What to Look for in an Air Purifier

Size

A larger room requires a higher-capacity air purifier. This is measured by clean air delivery rate, or CADR, which indicates how many particles are filtered and how fast. For the most effective air purifier, choose one that has a CADR rating that’s at least two-thirds the size of the room. (A 100-square-foot room would have a CADR rating of at least 67.)

Efficiency

Air purifiers clean a room’s air at different intervals over the course of one hour. This is called air change per hour, or ACH rate (which varies from 2-6). An ACH rate of 2 means the air will be cleaned every 30 minutes, an ACH rate of 4 means the air will be cleaned every 15 minutes, and an ACH rate of 6 means the air will be cleaned every 10 minutes.

Filter type

There are three main types of filters: HEPA filters, charcoal or active carbon filters, and washable filters. HEPA filters are most effective at reducing common allergens (pet dander, pollen, and dust), but charcoal or active carbon filters remove irritants like smoke or cooking smells more effectively. Washable filters are more cost-efficient and environmentally friendly since the entire filter does not need to be replaced.

FAQ
  • Where should you place an air purifier?

    You can place your air purifier in any room you feel has high pollution. This may be the kitchen, living room, or bedroom, depending on your household and needs. Just make sure the machine has free airflow from all sides so it can work properly. Do not place your air purifier in a tight space or right up against a wall, as this can inhibit the airflow. If it’s going in a bedroom, having the machine on a nightstand or small table not too far from your head can ensure you’re breathing clean air while you sleep. 

  • How do you clean an air purifier?

    Making sure your air purifier performs optimally means giving it a quick clean every two to four weeks. To do so, unplug the device and take out the HEPA filter. If it’s water-safe (check the care instructions), rinse it under some warm water to dislodge the dirt, dust, and debris particles. If the filter is not washable, gently vacuuming the debris off of the outside will do the trick. Either way, make sure to be extremely gentle and do not damage the mesh material in the cleaning process.

  • How long should you run an air purifier?

    To get the full benefits of using an air purifier, you need to make sure it is on a lot. That’s because studies show that chronic exposure to poor air quality can lead to a number of health conditions. You should run your air purifier for at least 12 hours a day, but it’s perfectly safe to keep it on longer. You can also run it while you sleep. 

Why Trust The Spruce?

This article was written by Jenica Currie, an editorial commerce producer at The Spruce since 2020. She has tested products for The Spruce both at home and at The Lab, including artificial Christmas trees, bean bags chairs, and vacuums. For this article, she researched top-rated models from trusted companies and researched what makes a good air purifier. She then combined her own research with our testers' results to compile this list. Additional reporting was done by Mackenzie Dunn, a writer and editor with expertise in the fashion, beauty, home, and lifestyle spaces. Her work has appeared in Good Housekeeping, Woman's Day, HelloGiggles, Real Simple, MyDomaine, and more.

Updated by
Mackenzie Dunn
Mackenzie is a writer and editor for The Spruce with expertise in the fashion, beauty, home, and lifestyle spaces.
Learn more about The Spruce's Editorial Process
Article Sources
The Spruce uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.
  1. A Guide to Air Cleaners in the Home, United States Environmental Protection Agency.

  2. What Is A HEPA Filter? United States Environmental Protection Agency.