Austin Air has been manufacturing air purifiers for .... years. In that time they have developed a product line that can be found in almost every country in the world. To manufacture this many units, Austin Air has to have an enormous manufacturing facility . At 480,000 square feet, Austin Air operates the largest air cleaning facility in the world, where they make everything in house (housing, filters, metal forming, etc.)!
When Austin Air engineers were designing their current line of air purifiers, they built them around the most important part, the filter. Austin Air purifier's filters are designed to have air pass through 4 different stages of filtration to remove everything from dust, pollen and hair all the way down to bacteria from the air!
Stage 1: Large particle pre-filter removes dust, hair and pet dander
Stage 2: Medium particle pre-filter removes molds, spores and pollen
Stage 3: Active carbon and Zeolite blend filter removes gasses, odors and chemicals
Stage 4: True medical grade HEPA filter removes bacteria and viruses from the air
The end result is a truly purified air that is excellent for anyone who gets sick often, suffers from allergies, or just wants to breath/live in a healthier air environment.