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Austin Air Bedroom Machine Replacement Filter Pack (FR402)

Austin Air Bedroom Machine Replacement Filter Pack (FR402)


Austin Air FR402 Replacement Filter Pack replaces all filters that come with The Bedroom Machine (HM402). Includes the main filter assembly (True HEPA filter, activated carbon/zeolite filter, HEGA carbon cloth, and medium-particle pre-filter), plus the large-particle outer pre-filter. Removes allergens and other airborne particles, plus odors, smoke and gases from indoor air.

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MSRP: $550.00
Sale Price: $439.99

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within 24 hours

Works with Models:
The Austin Air Bedroom Machine (HM402).  Will also fit any standard-size Austin Air purifier.

Austin Air Bedroom Machine Filter Pack (FR402) replaces all filters that come with The Bedroom Machine Air Purifier (HM402). The Bedroom Machine's 5-Stage filtration system provides best overall protection from airborne particulates, and is designed especially for those with sleep-related issues. The system uses true, medical-grade HEPA to clean air of particles and contaminants, plus a carbon/zeolite filter to absorb odors, gases and fumes. Additionally, the filter integrates a military-grade HEGA carbon cloth to absorb even more gases and harmful VOCs.  Included in The Bedroom Machine 5-Stage Filter Pack are:

  • Stage 1 - Large Particle Permafilt Pre-Filter - removes particles easily seen by the eye (dust, hair, pet dander)
  • Stage 2 - Medium Particle Pre-Filter - removes small to medium-size particles (pollen, molds, other spores)
  • Stage 3 - 15 lbs. of Activated Carbon and Zeolite - removes chemicals, gases and odors
  • Stage 4 - 60 sq. ft. of Certified HEPA - removes allergens, bacteria, viruses, and other particulates:
    • 99.97% of all particles larger than 0.3 microns
    • 95.0% of particles larger than 0.1 micron
  • Stage 5 - Military-Grade HEGA Carbon Cloth - absorbs more gases, odors and chemical contaminants

Because you see the pre-filter through the air cleaner's grille, choose the Black filter pack for Black-Silver-Blue units or the White filter pack for Sandstone-White units.


  • Replacement Bedroom Machine Filter Pack (FR402) includes all 5 filters to replace the set that comes in the unit
  • Includes 60 sq. ft. of true, medical-grade HEPA to filter 99.97% of allergens, bacteria and viruses, to 0.3 microns
  • Uses 15 lbs. of blended carbon-zeolite to remove odors, gases and chemicals
  • Integrates a military-grade HEGA carbon cloth after the HEPA for advanced removal of reactive gases, odors, and harmful VOCs
  • Two (2) pre-filters trap larger particles and prolong the life of the HEPA
  • Fits Austin Air's Bedroom Machine (HM402) air purifier. Will also fit any standard-size Austin Air purifier.
  • The (outer) Stage 1 Permafilt Pre-Filter (F400) by Austin Air may also be purchased separately.

Filter Replacement for Austin Air Purifiers

Please see Owner's Manual tab for full instructions on changing the HEPA filter pack.


  • Austin Air filters are designed to last up to 5 years. Remember that the filter's service life is related to the volume of air that passes through the purifier and the amount of contaminants in the air. If your indoor air has an unusually high level of airborne particulates or contaminants, the filter's service life may be shortened.
  • Regular maintenance helps to prolong the life of the HEPA filter. Keep the area surrounding the air purifier clean, and be sure to vacuum any dust buildup on the outside of the unit, especially on the 360° air intake grille.
  • Replace HEPA filter pack if you notice a significant drop in clean, odorless air flow.
  • Filter change is quick and easy.

Click here to view the Austin Air Owner's Manual.

Click here for a one-page set of instructions on filter changes for the Austin Air.

Signature Is Required For Delivery

Sorry, Austin Air Filter Packs cannot be shipped to PO boxes or military addresses.
Usually Ships in 1-2 Business Days Direct from the Manufacturer.


Rated 5.00 out of 5 based on 2 reviews.

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The Austin Air Filter is the best room air cleaner I've ever found. Maintenance is so easy. The pre-filter needs to be changed every 6 months, and then I vacuum the main filter. I have 4 of these around the house (I have severe allergies) and 2 of them have already gone over their 5 year estimated lifetime. All other air filters make you change the pre-filter every 3 months and the main filters yearly - they are too expensive and it's too dirty a job, plus they don't work near as well as the Austin Air Filter.
I've had my Austin Air for years. It's a quiet running air cleaner compared to other HEPA cleaners, and it's easy to maintain. High quality. If it broke, I would go buy another one. I've had mine for over 10 years now, I think, and still running fine.