This spray contains a high-quality air-conditioning cleansing foam. The foam optimizes the air-conditioning functions, and leaves a subtle menthol scent. Before use, carefully read the following directions and act accordingly. The canister should be kept and used at room temperature. The optimal use of the spray can be guaranteed at operating temperatures between 5 °C and 30 °C. Shake before use. Make sure to observe the instructions of car manufacturers before using this product. Uses may vary for different vehicles. Before use, switch off the engine and the electrical installations. Remove the air-conditioning filter. Insert the spray can tube, 30 centimeters into the air inlet of the air conditioning. Completely empty the spray can. Let the cleaner take effect for at least half an hour. Do not start the engine, or use the electrical installations during this half an hour. The foam will break down, and leave the system through the air conditioning drain. After half an hour, start the engine, open all vehicle doors, and turn on the ventilation system at maximum power and temperature. Let it run for ten minutes. Check if the evaporator is dry, and install a new air filter.