Developed specifically for the removal and prevention of unpleasant odours in vehicle interiors. Odours from air conditioning systems are eliminated simply and in a short time. Easy to use: shake well before use, place can in footwell, start engine, select indoor air recirculation at medium power, open air vents, activate can, close windows and doors, use for 10-15 minutes. When the can is empty, allow the car to ventilate for 5 - 10 minutes with the doors and windows open and the car running at full ventilation. The product works best in a warm car.