Austin Air Immunity Machine Air Purifier | 8-Phase HEPA + HEGA Filtration

The Austin Air Immunity Machine is the most capable air purifier Austin Air has ever built. Every other unit in the lineup uses 4 or 5 stages of filtration. The Immunity Machine uses 8 — combining four distinct granular filter media with two prefilters, Medical Grade HEPA, and a Military Grade HEGA carbon cloth in a single filter assembly. Nothing else in the Austin Air line comes close to this level of coverage.

It is built for people whose air quality concerns go beyond allergens and everyday odors — those dealing with weakened immune systems, autoimmune conditions, significant chemical exposure, or environments where the full spectrum of biological and chemical threats needs to be addressed simultaneously. Classrooms, medical waiting rooms, newly built or renovated spaces, and homes where occupant health demands the highest available standard of air filtration.

Available exclusively in Graphite. One model, no variants.

✓ Free Shipping — This item ships free to the contiguous United States.

The 8-Phase Filter

Most air purifiers rely on a single carbon stage. The Immunity Machine uses four distinct granular filter phases before the air reaches the HEPA and HEGA stages — each targeting a different class of contaminant:

• Phases 1 & 2 — Prefilters: Large and medium particle prefilters capture visible dust, pet dander, pollen, and mold spores
• Phase 3 — Granulated Activated Carbon: Adsorbs odors, VOCs, and general chemical gases
• Phase 4 — Impregnated Carbon: Enhanced targeting of formaldehyde, benzenes, and specific chemical vapors
• Phase 5 — Zeolite: Adsorbs ammonia, nitrogen dioxide, and formaldehyde
• Phase 6 — Impregnated Zeolite: Additional capacity for targeted gas and chemical adsorption
• Phase 7 — Medical Grade HEPA: Certified to remove 99.97% of airborne particles down to 0.3 microns and 99% down to 0.1 microns — including viruses, bacteria, allergens, and microplastics
• Phase 8 — Military Grade HEGA Carbon Cloth: Originally developed for chemical, biological, and nuclear defense — eliminates ultra-fine contaminants including viruses that pass other filter stages

Who It's Built For

• People with weakened immune systems or autoimmune conditions
• Occupants of newly constructed or recently renovated homes with off-gassing concerns
• Classrooms, daycares, and medical environments requiring maximum particulate and chemical protection
• Anyone working consistently in high-exposure environments
• Those with significant formaldehyde, VOC, or chemical sensitivity concerns who need the most comprehensive solution available

Product Overview Video

Specifications

How to Use It

Place the Immunity Machine at least 4 inches from any wall with the air vent facing away from the wall. Run it 24 hours a day in the primary occupied space for maximum effectiveness. On first use, run on the high setting for one hour, then adjust to your preferred speed. Monthly, vacuum the exterior screen with a brush attachment. That is the only regular maintenance required.

Warranty

All warranty coverage on the Austin Air Immunity Machine is provided directly by Austin Air Systems. As an authorized Austin Air dealer, we facilitate the return process — contact us within 30 days of purchase to initiate a return or exchange. Warranty claims beyond the return window are handled directly by Austin Air Systems.

• 5-Year Mechanical Warranty — covers defects in materials and workmanship under normal residential use; requires completed warranty registration with Austin Air Systems

Register your unit at austinair.com after purchase to activate the warranty.

Download the Austin Air Owner's Manual (PDF)

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