A long lasting treatment to clean air conditioning systems & overcome bad odours The simple lock & leave application will clean the entire air conditioning system in under 20 minutes. Pro Tip: re-treat the vehicle every six months, or after extended periods of inactivity. How to use this product 1. Aerosol should be at room temperature before use. Ensure all windows & doors are closed & start the engine. 2. Switch on the air conditioning system, set to low temperature, intermediate blower speed & internal circulation. Ensure face level fascia vents are open. Run engine for 5-10 minutes. 3. Shake the aerosol can well. Fold in the perforated panels of the carton & place the aerosol can at a 40 degree angle. Avoid pointing the aerosol at the carpet. Position the carton far forward in the passenger side footwell & leave the aerosol facing into the footwell. Depress trigger into the lock-down position. Exit vehicle & close doors. 4. Once the can is fully discharged, allow the system to run for a further 5 minutes then switch off the engine & open all doors/windows fully to ventilate the vehicle. Leave doors/windows open & allow the vehicle to air for 5-10 minutes. FAQ's Q: How long does it take to clean my air-conditioner using Air-Con Cleaner? A: The simple lock & leave application will clean the entire air conditioning system in under 20 minutes. Q: How often should I clean my air-con system? A: We would recommend re-treating with Air-Con Cleaner every six months or after a long period of inactivity.