There are a few that do not freeze. Purple K
is dry powder. Halon
is a gas. Carbon Dioxide/ CO2
, is a gas, and like Halon is best used in a confined space. A drawback is, they are the heaviest of extinguishers. Another drawback is, if the source of ignition and fuel is still present a re-ignition can occur after it dissipates. The short of it is, if it contains water it will freeze.
That may not be current, as I have been out of the fire service for 35 years.
This is another that will freeze Cold Fire
. Mac the Fire Guy
sells an extinguisher that works just as well IMO, and I highly recommend him for advice, education, and products.
Of course the key to using any extinguisher is education.