Ключевые слова: air, allergy, application, asthma, audio, background, bedroom, closed, cold, comfort, condensation, cough, crib, cure, device, digital, dry, ecology, electronic, filter, flow, fog, hall, happiness, health, healthy, home, humidification, humidifier, humidity, indoor, ionization, lamp, life, medicine, moisten, nose, purifier, rehabilitation, room, skin, smoke, soil, sound, steam, treatment, ultrasonic, water, wet, winter,