Ключевые слова: adult, asthmatic, bed, breath vapor, breathing exercise, care, caucasian ethnicity, child, closeup, doctor, drop, epidemic, equipment, eyes closed, headshot, healthcare and medicine, healthy lifestyle, hospital, human face, illness, indoors, inhaling, liquid, medical oxygen equipment, medical procedure, medicine, mid adult, nebulizer, oxygen, pain, pandemic, patient, plastic, portrait, protective mask, recovery, relaxation, respiratory system, resting, smoke inhalation, surgery, surgical mask, tube, tubing, urgency, women, workwear,