Shake well before using this product; Nozzle towards the car seat cushion, back of a chair, the steering wheel, such as high temperature parts whole area of uniform continuous spraying; If injection to human body, please keep the above 30 cm long jet distance and not to the same place, in case of frostbite. Visual need to be sprayed the second; Keep the vents open after use, please wipe the nozzle back cover tightly.