KILLS ON CONTACT: Hot Shot Fogger With Odor Neutralizer kills on contact and controls heavy infestations – and keeps killing for up to 2 months. KILLS HIDDEN BUGS: Creates a fine, penetrating mist that reaches deep into cracks and crevices to kill the bugs you see and kill the bugs you don't see. WHERE TO USE: Use in enclosed spaces such as apartments, attics, basements, barns, boat cabins, cabins, campers, crawl spaces, garages, homes, households, sheds, storage areas and trailers. NON-STAINING: This clear, non-staining formula won't leave a wet, messy residue. EACH CAN COVERS 2,000 CU FT: Treats 2,000 cubic feet of unobstructed space (15.5 feet x 16 feet x 8-foot ceiling) – in rooms smaller than 5 feet x 5 feet, allow fog to enter from other rooms.