See a brief video showing Austin Air HEPA/HEGA Filtration:
Austin Air Allergy Machine™ HEPA/HEGA Filter Pack (FR405) replaces all filters that come with the Austin Air Allergy Machine™ (HM405). The Allergy Machine's 4-stage filtration system is designed for best all-around protection from allergies and asthma. The system integrates military-grade carbon cloth with true, medical-grade HEPA to clean air of the smallest airborne particles and chemical gas contaminants to become HEGA (High Efficiency Gas Absorption). Included in the Allergy Machine™ 4-Stage Filter Pack are:
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.
Note: 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.
Signature Is Required For Delivery
Sorry, Austin Air Filter Packs cannot be shipped to PO boxes or military addresses.
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. (Posted on 7/18/10)
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. (Posted on 3/27/10)