Austin Air is an American company located in Buffalo, New York. They are the only manufacturers to have our products designated as Medical Grade Air Purifiers. Austin Air is the only manufacture to successfully reduce asthma attacks and respiratory problems in a clinical trial conducted by the medical community and recognized hospitals. Johns Hopkins Hospital have chosen our medical grade air purifiers to conduct four clinical trials. They were selected by the Federal Government to provide the emergency air purifiers to the citizens of Anniston, Alabama during the destruction of chemical weapons.