Ключевые слова: care, catch, closeup, corona virus, covid2019, disease, doctor, dust, environment, epidemic, equipment, exhaust gases, face, filter, flu, flu pandemic, hand, health, health care, hospital, hygienic, ill, illness, infection, infection protection, influenza, mask, medical, mouth, pollution, prevent, prevention, protect corona, protect virus, protective mask, safety, sick, sickness, smog, surgical, surgical mask, toxic, virus, wearing, white,