Fogger
A fogger or bug bomb is any device that creates a fog by releasing their contents at once to fumigate an area. Foggers typically contain a pesticide or an insecticide such as aerosol propellants for killing insects and other arthropods. Foggers are often used by consumers as a low cost alternative to professional pest control services. The number of foggers needed for pest control depends on the size of the space to be treated, as stated for safety reasons on the instructions supplied with the devices. The fog may contain flammable gases, leading to a danger of explosion if a fogger is used in a building with a pilot light or other naked flame.