二氧化碳灭火器

Extinguisher \Ex*tin"guish*er\, n.
One who, or that which, extinguishes; esp., a hollow cone or
other device for extinguishing a flame, as of a torch or
candle.

{fire extinguisher} a portable device designed to deliver
chemicals, usually in a stream, that can suppress or
extinguish a fire. Examples of fire extinghuishers are a
{carbon dioxide extinguisher}, or {CO2 extinguisher}, and
{soda-acid extinguisher}.
[PJC]