Ключевые слова: adult, air, allergy, asthma, asthmatic, background, breath, breathing, bronchitis, care, caucasian, cough, device, disease, equipment, expression, health, hospital, illness, inhalation, inhale, inhaler, inhaling, isolated, mask, medical, medicals, medication, medicine, nebulizer, oxygen, patient, pediatrician, person, recovery, respiratory, therapy, treatment, ultrasonic, white,