Ключевые слова: background, blue, corona, corona protection, coronavirus, covid 19th, covid19, danger, dirty, diseases, disposable, doctor, epidemic, equipment, face, face mask, flu, gauze mask, grass, green, health, hygiene, isolated, mask, material, medical, medical mask isolated, medical tasks, medical technology, medicine, natural, nature, object, pandemic, plans, pollution, pollutions, protection, protective, safety, sanitary, sickness, throw away, trash, vegetarian, veiled, virus, waste, white,