Ключевые слова: biohazard, building, clean, cleaner, cleanliness, cleanse, covering, dirt, employment, germs, glove, goggles, hazard, health, healthcare, hygiene, hygienic, indoors, job, maintenance, male, man, mask, nozzle, person, pipe, professional, protection, protective, risk, safety, suck, suit, suited up, uniform, vacuum, white, work, worker, working,