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 including application spray 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 air conditioning 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. If uncertain about application, have a certified mechanic apply.