Austin Air Allergy Machine HM-405
Includes PermaFilt Prefilter in White or Black. The white pre-filter option is recommended if you own a Sandstone, Silver, or White colored unit, and the black pre-filter is recommended if you own a Black or Midnight Blue unit.
- Dimensions: 13.5" Diameter x 14" H
- Weight: 12 lbs.
- Part: FR-405 (FR405)
Genuine OEM Austin Air Brand Replacement Filter
NOTE: This filter is manufactured by Austin Air, and is the highest quality, longest lasting filter available for your Austin Air Purifier. Be wary of lower-quality generic knock-off filters.
4-Stage Filter Configuration:
PermaFilt pre-filter is Stage 1, then main filter combines three additional stages of filtration:
STAGE 1: Large Particle PermaFilt Pre-Filter (wraps around main filter)
Cleanable re-usable prefilter traps large particles easily seen by the naked eye (dust, hair, lint, pet dander, etc) while prolonging the life of the main filter. Easy to maintain - simply vacuum clean monthly from the outside of the unit.
STAGE 2: Medium Particle Pre-Filter
Removes additional small to medium sized particles (mold spores, pollen).
STAGE 3: 60 sq ft Certified True HEPA filter media
Medical-grade True HEPA pleated filter traps up to 99.97% of particles as small as 0.3 microns that pass through the filter.
STAGE 4: HEGA Carbon Cloth
Lightweight HEGA cloth (High Efficiency Gas Adsorption) reduces chemical pollutants, gases, and odors.