Overall Best HEPA Air Purifiers

Research the best air purifiers through expert ratings and reviews. Our recommended HEPA air purifiers are ranked by our research team of product experts.

Our expert research team recommends the following air purifiers as best in their class as they offer exceptional value and reliable performance. After nearly two decades of testing air purifiers, we recommend Alen, Blueair, AllerAir, and Austin Air as makers of standout air purifiers that consistently exceed industry standards. Our air purifier reviews and ratings are based upon a number of criteria, including effectiveness, coverage, warranty, features, and overall value for cost.



Alen BreatheSmart Air Purifier

#1 Alen BreatheSmart HEPA Air Purifier


Expert Rating: Excellent [?]

Customer Rating:  (44)

BreatheSmart features SmartSensor Technology and is the most powerful Alen ever, offering 42% greater airflow and 42% more coverage.




Filtration Type: HEPA
Particles Removed: 99%
Coverage Area: 1100 sq. ft.
Price: $599.00
Warranty: Lifetime Limited Warranty

Product Details




Alen T500 Air Purifier

#2 Alen T500 HEPA Air Purifier


Expert Rating: Excellent [?]

25% smaller, 25% quieter, 100% as powerful. That's why Alen's T500 is a smart value.




Filtration Type: HEPA
Particles Removed: 95%
Coverage Area: 500 sq. ft.
Price: $249.00
Warranty: Lifetime Limited Warranty

Product Details




Blueair 403

#3 Blueair 403 HEPA Air Purifier


Expert Rating: Excellent [?]

Customer Rating: (17)

The Blueair 403 is an achievement in Swedish design. Quiet and compact, it is an excellent choice to clean the air in small spaces.




Filtration Type: HEPA
Particles Removed: 99.97%
Coverage Area: 365 sq. ft.
Price: $549.00
Warranty: 1 Year Warranty + Option to Extend

Product Details




Austin Air Healthmate Air Purifier

#4 Austin Air Healthmate HEPA Air Purifier


Expert Rating: Good [?]

Customer Rating: (7)

The Austin Air Healthmate is effective up to 1500 sq. ft. Where the Healthmate lacks in bells and whistles, it makes up in reliable performance.




Filtration Type: HEPA
Particles Removed: 99.97%
Coverage Area: 1500 sq. ft.
Price: $538.99
Warranty: 5 Year Warranty

Product Details




Allerair 5000Exec

#5 Allerair 5000 Exec HEPA Air Purifier


Expert Rating: Good [?]

Customer Rating: (9)

AllerAir's 5000 Exec is ideal for chemical concerns. Its all-steel construction misses the mark on style but offers nice durability.




Filtration Type: HEPA
Particles Removed: 99.97%
Coverage Area: 1500 sq. ft.
Price: $699.98
Warranty: 10 Year Warranty

Product Details


What is the best air purifier?

The key to cleaning the air in your environment is to first identify the source of any air quality issues. The best air purifiers are ones that address your specific concern, whether it be dust, asthma, smoke, pet dander, mold, or poor indoor air quality in general. All units offered by AirPurifiers.com are produced by well-established brands which meet or exceed our industry testing standards.

We rank the Alen BreatheSmart HEPA Air Purifier as the #1 Air Purifier on the market. The Alen BreatheSmart is Energy Star Certified and comes with the industry's only Lifetime Limited Warranty. Notable features are its SmartSensor and WhisperMax Technologies. With SmartSensor Technology, the BreatheSmart automatically detects pollutants and self-adjusts to your surroundings to continually improve air quality. The BreatheSmart was designed by Alen's engineers to produce minimal sound while purifying the air. Our research team finds that the BreatheSmart effectively removes 99% of particles 0.3 microns and greater. Alen's versatile filter options can address specific concerns, such as heavy odors, smoke, chemicals, and bacteria.

While we rate the Alen BreatheSmart as the overall best air purifier, it may or may not be the right model for your needs. When considering investing in an air purifier, we always recommend you weigh all factors that may be important to you.