Everyone loves a great smelling car and with Autofresh you get that every time you open the door. For long lasting freshness, spray onto your carpets and fabric mats. How to use this product. 1. Apply sparingly to carpets or trim fabric. Remove unwanted overspray with a clean microfibre cloth. Avoid use on nubuck leather, suede, plastic and painted surfaces. 2. If smells persist, clean the area thoroughly with Interior Shampoo to remove the source of the odour.