About this item fights trapped car odors with an irresistible scent Transform your world with the airy laundry vibes of Unstopables Fresh... who has time to do actual laundry, anyways? fights stinks for up to 30 days by adding even more freshness with your car's air flow Simple to activate: Push the vent clip until you hear it click in Adjust the scent intensity from low to high and explore your bold side