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Austin Air

Austin Air Allergy Machine Air Purifier - HM405

Austin Air Allergy Machine Air Purifier - HM405

Regular price $764.99 USD
Regular price $917.99 USD Sale price $764.99 USD
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Who should consider the Austin Air Allergy Machine® HM405 Air Purifier?

  • Those exposed to biologics such as viruses and bacteria
  • Individuals living in damp environments
  • Asthmatic Children

Health Benefits:

  • Reduces the viral load to minimize risk of infection or severity of disease
  • Lessens night-time allergies and asthma attacks
  • Strengthens the immune system
  • Eases coughing, wheezing and sneezing
  • Reduces dry mouth and runny nose
  • Sounder sleep
  • Reduced snoring

Why is the Allergy Machine® the best choice for me?

  • Designed for immediate filtration of allergens
  • Medical Grade HEPA effectively removes 99% of airborne viruses that are 0.1 microns and larger
  • HEGA carbon cloth also removes viruses, bacteria, chemicals and gases from the air
  • High capacity filtration for the removal of allergens from the air
  • Designed for relief of sneezing, coughing and stuffy noses caused by every day or seasonal allergies.


The Allergy Machine® provides relief for those suffering from asthma or every day and seasonal allergies by removing sub-micron particles such as pollens and dust mites as well as chemicals and noxious gases. Austin Air’s 360-degree intake system draws air into all sides of the Allergy Machine®, passing it through a 4-stage filter.

  • Dimensions: 14.5″L x 14.5″W x 23″H - The unit has compact dimensions of 14.5 inches in length, 14.5 inches in width, and 23 inches in height.
  • Weight: 29 lbs. - The unit weighs only 29 pounds, making it easy to transport and move around.
  • 360° Perforated steel intake housing - The unit features a 360° perforated steel intake housing, ensuring efficient air intake from all directions.
  • Baked on powder coat paint finish - The unit is coated with a durable baked-on powder coat paint finish, providing a sleek and long-lasting appearance.
  • 3 speed centrifugal Fan - The unit is equipped with a 3-speed centrifugal fan, allowing you to adjust the airflow according to your preference.
  • High efficiency motor rated for continuous use at high RPM - The unit is powered by a high-efficiency motor that is designed to operate continuously at high RPM, ensuring optimal performance.
  • CSA approved - The unit is CSA (Canadian Standards Association) approved, meeting the required safety and quality standards.

Filter Specifications:

  • STAGE 1 – Large Particle Pre-filter. Removes particles easily seen by the naked eye (e.g. dust, hair and pet dander)
  • STAGE 2 – Medium Particle Pre-filter. Removes small to medium size particles (e.g. molds, spores and pollen)
  • STAGE 3 – 60 sq. ft. of True Medical Grade HEPA. Removes 99.97% of all particles larger than 0.3 microns and 99% of all particles larger than 0.1 microns.
  • STAGE 4 – Military Grade HEGA Carbon Cloth. HEGA (High Efficiency Gas Arrestance), providing an extremely large surface area for adsorption of chemicals, gases, viruses and bacteria.



Replacement Filters

Cutaway image of Allergy Machine Air Filter

Replacement filter for Austin Air Allergy Machine®

All replacement filters have up to a 5 year life expectancy.

The Austin Air Allergy Machine® Filter integrates HEGA technology, originally developed by the military to protect against a wide variety of chemical, biological and nuclear agents. The HEPA filters 99.97% of all particles down to 0.3 microns in size and 95% of all particles down to 0.1 microns.

Manufacturer Warranty

Backed by the best warranty in the industry, you can take pleasure in knowing you’ve made a sound investment with your Austin Air cleaner.

30-Day, No-Questions-Asked, Money-Back Guarantee
In the unlikely event that you’re not completely satisfied with your Austin Air cleaner, return it within 30-days, no-questions-asked.

5-Year Mechanical Warranty
Your Austin Air cleaner is warranted to be free from defects in material and workmanship for a period of 5-years from the date of purchase; provided your Austin air purifier was operated under normal residential use and that you have completed and returned your warranty registration to Austin Air Systems.

Allergy Machine Warranty Registration Link

5-Year Pro-rated Filter Warranty
Austin Air offers a 5-year pro-rated filter warranty, by far the most comprehensive in the industry. No more costly filter replacements every few months or years. Austin Air filters are designed to last for an unprecedented 5-years, under normal residential use.

Filter Warranty Registration Link



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