The filter in an Austin Air Allergy Machine is designed to last for 5-years. This is made possible through the use of two pre-filters.

Stage 1: The large particle pre-filter removes dust, hair and pet dander.

Stage 2: The medium particle pre-filter removes mold, spores, and pollen.

Stage 3: The true medical grade HEPA filter remove bacteria and viruses.

 Stage 4: A HEGA (High Efficiency Gas Absorption) military carbon cloth removes odors, gasses, and chemicals. The Allergy Machine is specially designed for Allergy and Asthma sufferers.