Allergens, Bacteria, Candle Soot, Chemicals, Cooking Oil Smoke, Diesel Soot, Dust, Dust Mites, Fungal Spores, Industrial Pollution, Lint, Mold, Odors, Pet Dander, PM 1.0, PM 10, PM 2.5, Pollen, Smog Particles, Tobacco Smoke, Transportation Pollution, Ultrafine Particles, Viruses, Volatile Organic Compounds (VOCs)