Allergens, Bacteria, Chemicals, Cooking Oil Smoke, Cough & Sneeze Debris, Debris, Dust, Dust Mites, Exhaust Pollution, Gases & Fumes, Industrial Pollution, Mold, Odors, Pet Dander, PM 1.0, PM 10, PM 2.5, Pollen, Smog Particles, Tobacco Smoke, Transportation Pollution, Virus Carriers, Viruses, Volatile Organic Compounds (VOCs)