Sprays 15 to 20 feet and can be used indoors in attics and other places where nests are built or outdoors on hornet, wasp and yellow jacket nests. Can also be used to quickly knock down flying pests outdoors. Nests should be treated in the evening when insects have returned to the nest. For use in and around schools, hospitals, industrial plants, tank farms, warehouses, attics, basements and patios.