Ключевые слова: background, cold, coronavirus, covid 19, danger, disease, emergency, epidemic, equipment, face, face mask, facial, ffp2, filter, flu, green background, health, health care, healthy, human, hygiene, ill, illness, infection, influence, instrument, isolated, masks, medic, medical, medicines, object, pandemic, people, pollution, prevention, professional, protection, protective, respirator, safety, sick, sickness, sterile, surgery, surgical, therapy, treatment, virus, work,