Keep bugs where they belong: out of your home. The Hot Shot unscented hanging insect repellent kills flying and crawling insects with a penetrating, odorless vapor. Just hang or stand the strip up in attics, garages, storage areas and other spaces, including boats, RVs and cabins (when not in use). One unit will treat a 10 by 13 foot room with an 8 foot ceiling for up to 4 months.