All Halon 1211 extinguishers, for toxicity reasons, had a minimum room volume size noted on the “Warning” portion of their nameplates (labels). Halotron 1 extinguishers have similar warnings on their nameplates.
Halotron I extinguishers should not be used in a confined space of less than:
(see Halotron Minimum Volume). For comparison, room volume for an equivalent size extinguisher containing Halon 1211 is in the column at the right.
Halotron I requires only a slightly larger room volume, pound for pound, than Halon 1211.
As stated on the Halotron 1 “Owner’s Manual,” these extinguishers are NOT intended for residential use