a man in a protective suit conducts chemical and sanitary treatment in a city park. spraying repellent or antiviral composition

acaricidal anti antimicrobial antiviral bloodsucker bug chemical chlorine city cleaner control corona coronavirus covid danger destruction disinfection environmental epidemic extermination garden grass infection insect insecticide mite mosquito overalls pandemic parasite park pathogen pest pesticide pneumonia poison protective repellent respirator safety sanitize spray spraying tick treatment virus warning yard