Ключевые слова: aerosol, air, allergy, asthma, asthmatic, background, black, breath, breathing, bronchial, bronchitis, care, clinic, cough, cystic, device, disease, equipment, flu, health, hospital, illness, inhalation, inhaler, laryngitis, lung, lungs, mask, medical, medication, medicine, mists, nebulizer, object, oxygen, pneumonia, recovery, respiration, respirator, respiratory, sickness, supply, symptom, therapy, treatment, vapor, vapour, vapours, wheezing, whooping,