WATER Versions Contain FROST ADDITIVE for EXTERNAL USE
Water and foam extinguishers installed outdoors (or in areas with no heating) are particularly vulnerable and their contents may freeze and the internal lining become damaged. This renders them useless should they ever be needed.
An anti-freeze fire extinguisher provides a solution for those environments that can reach bitterly cold temperatures. These will still operate in temperatures of minus 9 degrees centigrade, with others freezing at 0.
*You can only get anti-freeze extinguishers which contain water. This means that only Class A fires (wood, paper, fabric, etc.) can be tackled with these types of extinguisher.