Cleans the air conditioning and heater evaporator eliminating foul odors  Also removes pollen, nicotine, and dust that can accumulate in A/C system and reduce cooling efficiency Thick foaming formula allows for long work time ensuring effective cleaning Water-based and free of caustic cleaners and irritants so it's safe for you and your passengers Includes additional nozzle (red) for spraying directly on air conditioner coils A professional air conditioner cleaner that effectively removes odors that other products and treatments costing hundreds of dollars can't do. Klima Cleaner eliminates dust and pollen buildup from the evaporator core of the air conditioner system for fresh and clean air that lasts for months. To apply Klima Cleaner, first remove the air conditioner blower fan allowing full access to the intake vent which leads to the evaporator. Using the included application tube, apply Klima Cleaner on to the evaporator. Klima Cleaner can also be applied through the evaporator drain tube located underneath the vehicle. A clean evaporator is not only healthier but also improves cooling efficiency by allowing better air flow for colder air without as much effort placed on the A/C system. For best results, apply every 3-6 months and replace your cabin/pollen air filters. ATTENTION: Read instructions before using! DO NOT apply through the vents. We highly recommend professional application only. If uncertain about application, have a certified mechanic apply product. 10 oz. Made in Germany