Product Description

Upgrade any full-size Austin Air purifier to the brand's most advanced 8-phase filtration with the Immunity Machine Replacement Filter. It layers a HEGA military-grade carbon cloth on top of 60 sq. ft. of True Medical Grade HEPA and a deep four-part carbon and mineral bed, so a single drop-in cartridge tackles the widest range of fine particles, gases, chemicals, and odors Austin Air filters for. Handcrafted in Buffalo, NY.

Key Features

  • 8-phase filtration — the only Austin Air filter with eight stages, combining four granular carbon/mineral layers, medical-grade HEPA, and HEGA carbon cloth in one cartridge.
  • True Medical Grade HEPA (60 sq. ft.) — captures 99.97% of airborne particles down to 0.3 microns, including smoke, dust, pollen, and dander.
  • HEGA carbon cloth — a High-Efficiency Gas Adsorption cloth originally developed for military chemical-defense use, adding an extra layer of gas, chemical, and odor adsorption beyond the carbon bed.
  • Deep carbon & mineral bed — activated carbon, potassium iodide impregnated carbon, and mineral media neutralize VOCs, formaldehyde, and everyday chemical gases.
  • Drop-in upgrade — fits all full-size Austin Air purifiers and turns a standard unit into 8-phase protection.
  • Designed to last up to 5 years under normal residential use; backed by a 5-year warranty and 30-day risk-free trial.
  • Prefilter color to match your unit — choose White for White or Sandstone purifiers, Black for Black or Midnight Blue purifiers.

The 8-Phase Filtration System

  • Phase 1 — Large-particle pre-filter: hair, dust, and visible debris.
  • Phase 2 — Medium-particle pre-filter: pollen, mold spores, and smaller dust.
  • Phase 3 — Activated carbon: everyday odors and gases.
  • Phase 4 — Potassium iodide impregnated carbon: harder-to-capture chemical gases.
  • Phase 5 — Mineral-based filtration: additional gas and chemical adsorption.
  • Phase 6 — Proprietary impregnated mineral media: extended VOC and chemical capture.
  • Phase 7 — True Medical Grade HEPA: 60 sq. ft. for fine particles, smoke, and allergens.
  • Phase 8 — HEGA carbon cloth: military-grade gas-adsorption cloth for a final chemical/odor pass.

Fits These Full-Size Austin Air Purifiers

  • Immunity Machine
  • HealthMate Plus
  • HealthMate
  • Allergy Machine
  • Bedroom Machine

Note: this is the standard full-size filter. It does not fit Junior models or the Austin Air "it" purifier.

Specifications

Type 8-phase replacement filter (HEPA + carbon + HEGA)
HEPA media 60 sq. ft. True Medical Grade HEPA (99.97% at 0.3 microns)
Gas / chemical media Activated carbon, potassium iodide impregnated carbon, mineral & proprietary mineral media, plus HEGA carbon cloth
Filtration phases 8 (two pre-filters, four-part carbon/mineral bed, HEPA, HEGA cloth)
Filter life Up to 5 years (normal residential use)
Prefilter colors White (for White/Sandstone units) or Black (for Black/Midnight Blue units)
Compatibility All full-size Austin Air purifiers (Immunity Machine, HealthMate Plus, HealthMate, Allergy Machine, Bedroom Machine)
Warranty 5-year warranty
Origin Handcrafted in Buffalo, NY, USA

Frequently Asked Questions

Is this a genuine Austin Air filter?
Yes. Robo Mechanix is an authorized Austin Air dealer, so this is a genuine Austin Air filter handcrafted in Buffalo, NY — not a third-party copy — backed by our US-based support team.

Which units does it fit?
It fits all full-size Austin Air purifiers — the Immunity Machine, HealthMate Plus, HealthMate, Allergy Machine, and Bedroom Machine — and upgrades any of them to full 8-phase filtration. It does not fit Junior models. Choose White for White/Sandstone units or Black for Black/Midnight Blue units.

How long does the filter last?
Up to 5 years under normal residential use.

How long does delivery take?
Total estimated delivery is 5–9 business days (1–2 business days processing plus 4–7 business days transit), with free shipping to the 48 contiguous states.

Why Buy From Robo Mechanix

  • Authorized Austin Air dealer — every filter is a genuine Austin Air part, not a third-party copy.
  • Our US-based team helps you confirm the right filter and color for your unit.
  • Free shipping to the 48 contiguous states, with 5–9 business day delivery.

Need the purifier too? See the Immunity Machine, or browse all Austin Air purifiers.

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