Austin Air Immunity Machine replacement filter contains Austin Air True HEPA filter and 5-Phase enhanced chemical filter with specialty activated carbon, zeolite and HEGA adsorbents for superior rate of chemical adsorption.
True HEPA filter, Carbon canister filter and HEGA filter are combined alltogether in one filter assembly to fit Austin Air Immunity Machine air purifier.
IMPORTANT NOTICE!
Austin Air Immunity Machine filter assembly comes with a single pre-filter available in two colors:

• Black (FR444A)
• White (FR444B)

Select the color of the prefilter from the "Color" pull down menu under "Select Product Options".
True HEPA filter traps 99.97% of all microscopic airborne contaminants down to 0.3 micron in size.
Activated carbon canister contains 15 lbs. of specialty Superblend adsorbent, Zeolite and HEGA for extra efficient removal of VOCs, ammonia, formaldehyde, pesticides and most other specific chemicals.
Large particle prefilter and medium particle perfilter trap visible size dust and dirt particles such as, lint, hair, etc. and protect the filter assembly from faster contamination.
The Filter's Lifetime: 2 to 5 years (under normal residential conditions).
The filter assembly has to be replaced when either the True HEPA filter or Carbon canister filter reaches the end of its lifetime.
The filter assembly is covered by the 5-Year Pro-rated manufacturer's warranty (applicable to units used under normal residential conditions only).