Oxygen Output Principle of Oxygen Breathing Apparatus
http://everysafty.com/nd-1428 Oxygen Breathing Apparatus is mainly used for fire fighting. The oxygen is produced by a chemical substance contained in the a tank, and the tank is inserted into the bottom of the breathing apparatus. The tank uses potassium superoxide as a CO2 scrubber and O2 generator. When used for the first time, sodium chlorate in the base produces additional oxygen, since the tank must reach a high internal temperature before it begins to produce oxygen. Exhaled air through the tank cycle, start the chemical process, usually takes less than 5 minutes, "candle" the normal burning time, the mask will initially be filled with light, harmless smoke. The extreme heat of chemical reactions requires the use of thick leather gloves to handle waste. The bag on both sides of the chest cools the air mixture before inhalation, which is surprisingly effective and the air is very cool when entering the mask. At the top of the chest unit there is a 60 minute timer,...
