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why should uou not touch the horn or pipe when using carbon dioxide extinguisher
the fire should exstinguish a carbon dioxide puts out flames as it is a common fire extinguisher
Carbon Dioxide or foam.
Carbon Dioxide(CO2) or Dry Powder.
A carbon dioxide extinguisher (used on electrical installation fires) should not be used in a confined space, as the user could be overcome and be asphyxiated (deprived of air).
Carbon dioxide, or foam, or dry powder. At no time should a soda water extinguisher be used, as the water will cause the burning gasoline to flare up and spread even further.
If the question you're trying to ask is "Why can someone use carbon dioxide as a fire extinguisher?" The answer is that all combustion reactions (burning) require oxygen. Overwhelming the environment surrounding the fire with CO2 limits the amount of oxygen available to the reaction, stopping the fire.
Electrical fire is Class C as long as the electricity is on, so use a BC or ABC extinguisher, either dry chemical, carbon dioxide gas or halogenated gas.
Some extinguiishers do but they should not be used on electrical or liquid fuel fires.
your choice, but DO NOT USE ON A FIRE
Yes, a fire extinguisher works on a grease fire. What you have to avoid with grease fires is throwing water on them, because the burning grease will just float on the water and will be splashed around as the water heats and vaporizes, spreading the fire, rather than being put out. But the carbon dioxide based fire extinguisher doesn't have that problem.
All extinguishers should be professionally inspected annually. Call your local fire department business number for advise on finding a reputable local inspector. Refilling or recharging should be done by, and on the advice of, a professional.