1) Insecticide device 
A fogger is any device that creates a fog, typically containing an insecticide 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 t...
See Smoke Machine. 
a device that spreads a chemical, as an insecticide, in the form of a fog.