Whether your commute needs an upgrade or you want to freshen up before your next road trip, an Auto Vent Clip from Enviroscent keeps your car's interior smelling great. Easy installation - simply slide the Enviroscent Auto Vent Clip into one of your car, truck, RV, or boat air vents and enjoy the fresh new scent of your vehicle! The Auto Vent Clip from Enviroscent will provide up to 30 days of fresh scent. Enjoy a brand-new scent in your vehicle and brighten your commute with the Enviroscent Vent Clips. Healthier, cleaner fragrance. 100% fragrance. 0% chemical fillers. Smell the Good. Our products contain 100% fragrance + paper, with a little all-natural starch and silica to make it last up to 30+ days. Separate paper and plastic before recycling.