Formulated for use in an automatic dispenser, Konk 409 Air Guard Flying Insect Killer insecticide targets flies, gnats and mosquitos in commercial applications. When emitted continually, this insecticide will reduce flying insect populations within a few hours. A single can protects a room up to 6,000 cubic feet (170 cu. m) for up to 30 days. It can be used in restaurants, hospitals, and barns. Ontario class 4 pesticide.