people in virus protective suits are going to clean disinfect the building

bacteria chemicals china clean cleaner company control coronavirus covid covid19 decontaminate design disease disinfect disinfectant disinfectants disinfecting disinfection disinfector epidemic escalator facemask hand hygiene icon illness infection laborer man medical office pandemia pandemic professional public quarantining red remediation removal remover room sterilisator sterilising sterilizer suit uniform unsanitary virus white