Chemicals, Allergens, Bacteria, Candle Soot, Dust, Dust Mites, Fungal Spores, Gases & Fumes, Industrial Pollution, Mould, Odours, Pet Dander, PM 1.0, PM 10, PM 2.5, Pollen, Smog Particles, Tobacco Smoke, Ultrafine Particles, Viruses, Virus Carriers, Exhaust Pollution, Cooking Oil Smoke, Cough & Sneeze Debris, Volatile Organic Compounds (VOCs)