pest control workers. parasites extermination. people in protective costumes with chemical insecticide sprayers

extermination pest insecticide sprayer exterminator people spray chemical prohibited pesticide insect fumigation disinfection parasite prohibition repellent control car warning worker disinfect service protective deratization costume mask truck professional equipment vermin mosquito poison bug disinfectant toxic encephalitis ant tick exterminate uniform disinfestation termite harmful stop forbidden cockroach icon vector set isolated