Don't mask odors with fragrances -- treat them. Klima-Cleaner is an effective means for removing odors from the air conditioning unit by eliminating odor-causing bacteria, fungi and other germs. Works by effectively cleaning the evaporator -- the source of the problem. Simply insert included spray hose into the center air vents in your vehicle's interior and spray. Allow to work for 30 minutes. Creates a healthy and fresh smelling environment that lasts for months. 250 ml aerosol *Ground Shipping Only CAUTION: Recommended for professional application only. On certain vehicle makes, damage may occur if product is not applied properly. If uncertain about application, have a certified mechanic apply product.