DUO 8200LIN Odor Eliminating Vent Clip Air Freshener (Linen Fresh) Patented odor elimination technology effectively treats and maintains the perfect odor free environment Designed with two separate liquids for odor elimination and fragrance Vented front panel allows for full air flow Fully adjustable for fragrance control Enjoy a fresh linen scent inspired by the nostalgic scent of sun dried laundry touched with a hint of honeysuckle