Ключевые слова: 2019ncov, air, air pollution, breathing, care, clean, construction, corona, coronavirus, covid19, disease, disposable, doctor, dust, epidemic, equipment, face, fever, filter, flu, health, healthcare, hospital, illness, industrial, infection, influenza, mannequin, mannequin foam, mask, medical, mouth, n95, pollution, protect, protection, quarantine, respirator, safety, sick, sickness, smog, surgery, surgical, valve, viral, virus, virus protection, wear, wearing,