The insecticides aerosol of this insecticide can kill mosquitoes, flies and Cockroaches quickly. it has a long-lasting residual protection against crawling insects. suitable for places such as home, office, shop etcShake up before use, keep upright to spray and never invert the tank to spray. To kill winged insects… aim at the winged insect and spray them or close the doors and windows, spray at the air about 1 meter distance from the walls or furniture, make the room full of aerosol, the indoor winged inside will die immediately. Open the doors and windows for ventilation after 10 minutes. The product is pressure pack. Never invert the tank to spray. The insecticides aerosol of this insecticide can kill mosquitoes, flies and Cockroaches quickly. it has a long-lasting residual protection against crawling insects. suitable for places such as home, office, shop etcShake up before use, keep upright to spray and never invert the tank to spray. To kill winged insects… aim at the winged insect and spray them or close the doors and windows, spray at the air about 1 meter distance from the walls or furniture, make the room full of aerosol, the indoor winged inside will die immediately. Open the doors and windows for ventilation after 10 minutes. The product is pressure pack. Never invert the tank to spray.