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Pull up the windows of the car, start the engine and switch on the air conditioning unit.
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Switch the fan to maximum capacity and set the ventilation system to internal circulation (close the external air intake).
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Pull the driver’s seat to the front. Get out of the car, shake the aerosol bottle and stand it on the floor of the car, behind the driver’s seat.
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With a firm motion, press the nozzle to let it stay in a depressed condition and close the door from outside. (Note that after pressing the nozzle, the whole amount of the aerosol is emitted.)
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After 15 minutes, open all doors of the cars and for at least 10 minutes aerate the passenger compartment and stop the engine only afterwards. Comply with the safety regulations until the end of aeration.