Ourfreshe Air Freshener Refill is designed for larger spaces, containing three to five times more fragrance than typical plug-ins and freshening more area. Dry-fragrance technology doesn't contain any acetone or other damaging propellants, eliminating sticky residues, spills and leaks. Refills are 100 percent recyclable, include a biodgradable additive and are part of a Fresh Products' closed-loop recycling program. Refill is compatible with the Ourfreshe air freshener dispenser (not included).