Harris Resistant Bed Bug Killer kills pyrethroid resistant bed bugs. Throughout the United States, pockets of pyrethroid-resistant bed bugs exist that are resistant to traditional chemicals used in other products. Harris Black Label kills bed bugs of all types (and their eggs) quickly and provides lasting protection for 16 weeks. The formula is odorless and non-staining. This product is registered with the Environmental Protection Agency (No. 1021-2597-3) for use in homes with people and pets. The spray is great to use in combination with a bed bug fogger, bed bug traps, bed bug interceptors, powder, bombs and mattress encasement covers to eliminate these bugs from your home.