Cool oxygen chemical gas generator

A chemical oxygen generator to produce cool oxygen gas comprising:

• a. a charge housing
• b. a solidified charge having pores contained in the said housing, the charge being made of a homogenous chemical mixture that generates oxygen upon decomposition and that will undergo a self-sustained exothermal decomposition after initiation, the said charge containing at most 3.0 wt. % of an inorganic binder material selected from the group consisting of sodium silicate, potassium silicate, and a mixture thereof, where the said charge is made from granular material bonded together by said binder material and having a porosity between 41% and 61%, and wherein the charge has a compression strength larger than 0.67 MPa and a Modulus of Elasticity under compression larger than 50 MPa,
• the said charge allows the generated oxygen to pass through the charge without damaging a virgin material and without creating volumetric burning,
• the said charge is mounted in the housing in such a way that the generated oxygen passes through the charge and under the pressure difference flows from a moving decomposition front towards the vent, and is cooled down to the ambient temperature due to heat exchange with the charge;
• c. an ignition device mounted at one end of the cartridge in such a way that it is capable to initiate a self-sustained decomposition of the charge at the charge surface adjacent to the initiator,
• d. an inert porous mass filter to remove sufficient heat from the oxygen towards the end of the reaction to provide oxygen gas less than 50° C., and
• e. a vent for discharging the generated oxygen that has passed through the generating-porous charge and filter;
• f. wherein the temperature of the vented oxygen gas is less than 50° C. substantially throughout the entire use of the generator.