Ключевые слова: air filter, air pollution, air quality, airborne, alert, anti dust mask, awareness, cancer, city smog, clean, contamination, control, defense, dust, environment, equipment, face mask, factory, filter, fine particles, forest fires, gear, hazard, hazardous, health, healthcare, healthy lungs, illustration, industrial, industry, inhalation risk, lung, matter, medical, n95 mask, outdoor, particles, personal, pm10, pm25, pollution mask, prevention, protection, protective, public, respiratory care, respiratory protection, safe breathing, safety, toxic, urban,