Eliminates odors & prevents them from coming back for up to 45 days, 1 of a kind way to keep your home's spaces smelling continuously fresh, button on the back once to activate it, enjoy up to 45 days of freshness, works best in small spaces like bathrooms, bedrooms, closets, laundry rooms, & mudrooms, great for putting next to hampers, in dorm rooms, under sinks & near shoes in closets, requires no plugs or batteries, sleek, compact design fits perfectly into any decor & works wonders from bathrooms to bedrooms.