Austin Air products, time after time, are rated as the best in their category during government and independent third-party testing. Austin Air utilizes commercial filter technology in addition to military and medical filter technology, to ensure the greatest protection from air pollutants such as airborne particles, chemicals, gases and odors. As the world's largest air cleaning manufacturer, they are proud to stand behind their products with the best warranty in the industry. HealthMate removes smoke, mold, mildew, irritants, hair, dander, dust, lint, germs, pollen, viruses, bacteria, chemicals, gases and odors. The HealthMate was made to be vacuumed from the exterior, eliminating expensive 3 month filter changes.