For small fires type B, then the fire can be extinguished by a cloud of powder. Sure the fire extinguisher DRY powder is the fastest and most efficient. However, the dry powder does not exclude all possibility of fire back. The fire extinguisher, CO2 form of relative lack of efficacy unless produced CO2 membrane bag gathered at the foot of the flame. However, CO2 is especially appropriate to extinguish the fire for sensitive equipment such as computers etc.Potentially dangerous for people using the average CO2 in enclosed space, gas is acting on the nervous system the part control respiration. (actually obstruct the respiratory process focuses on some of the points below when conducting extinguishing the fire). Hand fire extinguisher containing FOAM CHEMICALS are slow and limited effects over the fire when create foam to extinguish the fire. However they resolve the issue caught fire back and fit the small fires type B when preventing sharp fire back plays an important role. Apply for many cases but not the whole market, a dry powder fire extinguisher is suitable to use with the small fires type B PORTABLE FIRE EXTINGUISHERS. "AFFF" (foaming liquid membranes) are very effective for flammable liquid on the surface and they also prevent the phenomenon caught fire again. They are suitable for use for the majority of class B fires.
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