For years, homeowners have been repelling mice with peppermint oil. It's safe, natural, and humane, and even though humans find its scent pleasant, mice find it displeasing and avoid it.
Scent-Away™ Packs are made from a permeable mesh, and contain tiny granules infused with powerful, mouse-repelling peppermint oil. When placed in a confined space, the breathable pouch releases the minty scent throughout the area for up to 30 days. After a month, or when the scent begins to fade, simply toss the scent pack and replace it with a fresh one to continue repelling mice for another month.