Ключевые слова: air, appliance, background, bacteria, clean, cleaner, climate, cold, comfort, conditioner, conditioning, control, cool, device, dust, electric, environment, equipment, fan, filter, flu, fresh, health, home, house, household, humidifier, indoor, interior, ionizer, ionizing, isolated, lifestyle, living, modern, ozone, pollution, purification, purifier, room, smog, smoke, system, technology, ultrasonic, ventilation, virus, white,