Our slim design, loop hanger and optional adhesive tab make it easy to discreetly place the GelAir Hang Tag just about anywhere! Use the loop or adhesive tape to stick in places like under a desk, on your door handle or inside trash cans. It's perfect for those small areas that can easily retain odors such as inside cupboards, behind the toilet, on the trash can lid, even closets and cars! Effective for up to 30 days. Permeated with our most popular premium F-Matic fragrances, GelAir products utilize enzymes to continuously fight odors for up to 30 days. Resistant to high temperatures. Effective in environments up to 131° F. VOC compliant in all 50 states and contains no CFCs or ozone-depleting substances.