Harris Bed Bug Killer effectively kills bed bugs once dry. Apply as a spot treatment to cracks and crevices and/or harborages, where evidence of bed bugs occurs, including bed frames, box springs, inside empty dressers, furniture and clothes, closets, carpet edges, high and low wall moldings, behind headboards, pictures, wallpaper edges and luggage. The odorless and non-staining formula will not cause damage to fabrics when used according to label directions. Registered with the Environmental Protection Agency (No. 3-11) for indoor residential use.