Hold the bottle upright and unscrew the cap a quarter turn. Fill the dosing chamber with 25 ml of concentrate by squeezing the lower part of the bottle. Unscrew the cap completely and add the contents of the dosing chamber to the windscreen water. 25 ml are sufficient for 2.5 litres of water. For larger containers use a correspondingly greater amount of concentrate.
PLEASE NOTE: Protect against frost.