Laundrin Car Air Refresher No. 7 has a stylish design that suits any car and a pleasant and elegant scent. Clip type for air conditioner vents that is easy to use. Easy to install. Pure ocean greens-inspired scent that carries a transparent, subtle sweetness. The Laundrin Car Air Refresher will help get rid of any unpleasant scents in your car. Each product lasts approximately 30 days.