Ключевые слова: aid, air, asthmatic, biotechnology, breath, breathing, care, clinic, convenience, coronavirus, covid19, cure, devices, disease, emergency, equipment, health, help, hospital, hygiene, inhalation, inhaler, mask, mechanical, medical, medicine, nebuliser, outbreak, oxygen, patient, plastic, pneumonia, prevention, problem, professional, protection, respiratory, rubber, safe, safety, single object, supplies, support, treatment, valve, white, white background,