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We have compiled the best air purifiers for allergies and asthma.  HEPA filters are the key to removing almost 100% of allergens and other particles that cause asthma symptoms.  While this is certainly not the only step you should take to relieve your symptoms, removing these pollutants from your air is an important and neccesary stride to help reach your goal of breathing easier. 

The Association of Home Appliance Manufacturers (AHAM) assesses each air purifier's Clean Air Delivery Rate (CADR), which calculates how quickly the machine removes pollen, dust, smoke, and other particles.  These pollutants trigger allergy and asthma symptoms.  AHAM also recommends what size room each purifier can effectively clean (in sq. ft.).  When you click 'compare products' while browsing our selection, you can see the recommended square footage of each cleaner.  The AHAM seal is displayed on all of our products, which shows the manufacturer's descriptions and specs are always accurate.  Please see the AHAM directory to find the CADR for various models.  They are judged on a scale from 0 to 450.

These air purifiers are also excellent for Chronic Bronchitis and Emphysema.  These diseases are similar to asthma in that they involve a respiratory sensitivity, meaning that an air purifier for Emphysema or Chronic Bronchitis should involve features in addition to a true HEPA filter so as to filter out more than just the standard allergens.  For more information on Chronic Bronchitis and Emphysema, see our article on Chronic Obstructive Pulmonary Disease.

Top Allergy and Asthma Air Purifiers   

Scroll down or click here to see the rest of our great asthma and allergy air purifiers

Airgle AG900 Clean Room
Austin Air Bedroom Machine Austin Air Allergy Machine  Surround Air XJ-3000D
Austin Air  Austin Air
$899 $764.99 $574.99 $119
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The Airgle AG800 is also a very good basic air purifier for allergies and asthma, but we have the AG900 amongst our top rated air purifiers for its Medical Grade Air Filtration. Designed specifically for severe allergy and asthma sufferers, the AG900 is used in clinics, hospitals, and healthcare facilities. It has a 99.991% efficiency rate of removing airborne contaminants. 40 sq. ft. of anti-microbial cHEPA filter removes allergen particles as tiny as .01 microns. It includes the Titanium Pro system, which kills viruses, bacteria, and odor. The AG900 is AHAM certified (click CADR below for more information) and Energy Star certified. The Bedroom Machine is the most advanced filtration system ever designed by Austin. It was created in a collaboration with the National Seep Foundation. A 360-degree intake system combined with 5 stages of filter technology makes it a top choice for allergy and asthma sufferers. The Bedroom machine allows you to direct air flow toward you while you sleep, preventing nighttime allergies and asthma attacks. A Medical grade HEPA filter removes 99.97% of allergens. A Military grade HEGA filter eliminates chemicals and smaller particles. It does have higher noise levels than then Airgle models. Special filtration is used in the Austin Air Allergy Machine. It is designed for efficient removal of allergens, chemicals, and odor. As you can see from the name, this model was created for severe allergy and asthma sufferers. The Allergy Machine removes pollen, dust, pet dander, and mold. It is essential for those living near a concentrated area of plants or trees, as they increase airborne allergens. Like the Bedroom machine, it includes a 360-degree intake as well as both a HEGA Carbon cloth and HEPA filter. The Noise level is rather high when on max output, but it works perfectly in the background when on its low setting. The Multi-Tech XJ-3000D is cost efficient yet effective at removing airborne contaminants.  It eliminates seasonal allergens such as dust, pollen, and pet dander.  It boasts a True Medical Grade HEPA filter like the others.  This ensures a tight seal, meaning all air will pass through the filter and not any other small gaps.  While it also uses an Activated Carbon filter, it is not as dense as some of the  higher end models.  The XJ-3000D includes a germicidal UV lamp, which effectively kills viruses, bacteria, and fungi. It has low consumption costs, however is not as powerful as the more expensive models. The XJ-3000D is a great low-cost air purifier for allergies and asthma.

CADR: Cigarette Smoke: 398, Pollen: 379, Dust: 400
40 ft. of cHEPA Filter
Activated Carbon Filter
Aluminum Housing
Traps 99.991% of Particulates
Ultra-Quiet Motor
Uses 192 Watts of Power on High
UV Light Kills Viruses, Bacteria, and Fungi
5 Year Warranty

5-Stage Filtration System
Low Cost to Replace Filters
60 ft. of True Medical HEPA
15 lbs of Activated Carbon Cloth
Steel Housing
Traps 99.97% of Particulates
Uses 135 Watts of Power on High
Endorsed by the National Sleep Foundation
5 Year Warranty

4-Stage Filtration System
HEGA Filter
60 ft. of True Medical HEPA
15 lbs of Activated Carbon Cloth
Steel Housing
Traps 99.97% of Particulates
Uses 135 Watts of Power on High
Designed for People with Respiratory Issues
5 Year Warranty

Economical ($25-$50 yearly cost for replacement filters and UV lamps)
True HEPA Filter
Activated Carbon filter
Germicidal UV Lamp for Removal of Viruses, Bacteria, Fungi, and Other Contaminants
Built In Timer which can be set to 1,2, or 4 hours.
Uses 50 Watts of Power on High
Traps 99.5% of Particulates
3 Year Warranty

Filter life 8-12 months Filter life 3-5 years Filter life 3-5 years Filter life 1 year
For rooms up to 617 sq. ft. For rooms up to 1500 sq. ft. For rooms up to 1500 sq. ft. For rooms up to 600 sq. ft.

See and compare our other great asthma and allergy air purifiers below.

HEPA Technology

The air purifiers below use HEPA filter technology, which is ideal for allergy and asthma sufferers.  All filters are tested to insure maximum air quality control, removing even the smallest particles from your home.  Our ratings for the best air purifiers for allergies and asthma also include the specific type of HEPA filter, with extra attention paid to True HEPA technology.

Airgle and Austin Air products are our top rated manufacturers.  They offer True HEPA technology, which refers to how well the purifiers output air through the filter.  True HEPA insures that all air sucked into the air purifier is blown out through the filter, without any leaks or loose seals.  This guarantees that the HEPA can do its job, removing 99.97% of airborne allergens.  Keeping your indoor air clean reduces asthma symptoms and improves lung function.  Another important aspect of controlling allergy and asthma symptoms is reducing exposure to Volatile Organic Compounds (VOCs).  Our top models on this page will do just that.  Austin air uses a HEPA filter with 15 pounds of activated carbon and zeolites, which can remove over 3,000 types of VOCs.  Removing these compounds will help people with respiratory problems breathe easier.

Additional Resources

Additional Resources: How to Get Rid of Allergies
  What are Allergies?
  Do Air Purifiers Work?

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