Multi purpose Spray & Air Conditioning De-odouriser 500ml aerosol. Remove all pollen filters or other filtering systems from all ducts. Set manual systems to normal and fresh air. Set automotive systems to vent and cold. Set blower on highest setting. Using the extension pipe provided, spray the De-odouriser into the fresh air intake for 5-10 seconds this is normally located in the engine bay. Allow the system to run for 5 minutes. Set controls to recirculate. Spray the De-odouriser into the recirculation intake for appro 5 to 10 seconds. This intake is normally located in the passenger footwell. If there is more than one intake spray equal amounts into each one. Place a cloth or paper underneath the intake to catch any excess product that may drip from intake. Allow to recirculate for approx. 1 minute. Set heat controls to maximum and spray into the re-circulation intakes for a further 5 to 10 seconds. Allow the system to run for 2 minutes then turn off. Spray small quantities of product into the floor ducts and any other vents inside the vehicle. Reset the system to normal and run for 2 minutes, turn off the system and leave the car to stand for 10 minutes with the door and windows open. After this time there should be a pleasant mint fragrance remaining. Also ideal for trainers , football boots and any other smelly footwear items that are stinking out the porch.