Big odors show up in small spaces. Fortunately Fresh Wave Fresh Pods can go anywhere. Garbage cans, closets, diaper pails, lockers, boats, RVs and more! Take the refillable case out of the plastic pouch and peel off the adhesive backing. Adhere to a clean, flat surface, and smell the fresh air! Replace the Pack every 30 days with Fresh Wave Odor Removing Packs.