Allergy Machine® Replacement Filter FR405


  • Revolutionary carbon fiber filter (HEGA) removes odors, toxic chemicals, gases and tobacco smoke from the air.
  • Large HEPA filter removes submicron particles including allergens, (dust mites, pet dander, pollen and mold spores) from the air.
  • The Allergy Machine Replacement Filter is recommended for the removal of allergens and particulates and is used by people with allergies, asthma, sinusitis and rhinitis.

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Allergy Machine’s unique replacement filter combines HEPA and HEGA to form a complete air cleaning solution.

  1. HEGA  (high efficiency gas absorption) is a special carbon fiber that provides ten times the surface area of traditional activated carbon.  Developed by the British military, this filter works like a sponge to bond with and absorb toxic chemicals, odors, gases and tobacco smoke and remove them from the air.  Unlike traditional activated carbon pellets, HEGA releases no carbon dust.
  2. HEPA media removes sub micron particles including pollen, mold spores, dust mites, pet saliva, pet dander, microorganisms (bacteria and viruses) and other allergens from the air. The Allergy Machine replacement filter (FR405) is increasingly becoming the choice of allergy and asthma sufferers.
  3. Prorated five year filter warranty.
Austin Air Technical Specifications Allergy Machine® Standard Filter FR405
Dimensions: 13.5 in. diameter, 14.5 in. height
Perma Filter Pre-Filter®
Military Grade HEGA Carbon Cloth. HEGA (High Efficiency Gas Arrestance)
60 square feet True Medical HEPA H13 grade filter medium.
Metal end caps with foam sealing gaskets top and bottom.
Filter total weight of 10 lbs.
STAGE 1 – Perma Filter Pre-Filter. A Large Particle pre-filter.Removes visible particles (e.g. dust, hair and pet dander)
STAGE 2 – Medium Particle Pre-filter. Removes small to medium size particles (e.g. molds, spores and pollen)
STAGE 3 – 60 sq. ft. of True Medical Grade HEPA. Removes 99.97% of all particles larger than 0.3 microns and 95% of all particles larger than 0.1 microns.
STAGE 4 – Military Grade HEGA Carbon Cloth. HEGA (High Efficiency Gas Arrestance), providing an extremely large surface area for adsorption of chemicals, gases, viruses and bacteria.


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