How to apply anti-fog film Step 1. Clean The SurfaceStep 2. Peel The Backing Off The FilmStep 3. Place The Film and the transfer tape/guide sticker on the mirrorStep 4. Squeegee Out Any Air BubblesStep 5. Moisten the transfer tape with water by either spraying or with a wet rag then peel te transfer tapeStep 6. Get an Anti-Rain MirrorKeep the mirror clean for the best result.