disinfector in a protective suit conducts disinfection in contaminated area. professional disinfection against covid-19,

area bacteria barrier biohazard chemical china clean cleaning concept coronavirus covid19 defense disease disinfect disinfectant disinfection ecosystem efficiency environmental epidemic fever hazard home house infection italy kill kitchen man mask mold mould outbreak overalls pneumonia pollution prevention protective purification quarantine removing respirator sanitize specialist spray suit uniform wall worker wuhan