The product is suitable for de-icing the glass surfaces of motor vehicles, railway and tram cars, as well as shop windows, windows, frozen locks and handbrakes. It cannot be used to de-ice the interior of refrigerators used for food storage! USE: Start the engine and direct the heater towards the windshield! Turn the spray nozzle at the end of the spray gun to the desired position! Spray the ice-covered surface from top to bottom from a distance of 20-25 cm! Wait until the ice begins to melt, then remove the melt water! If the ice returns, use PRELIX winter windshield washer fluid while driving!