| 摘要 |
A pressurization device is for a flexible enclosure disposable within an environment having air at a pressure and configured to define an interior chamber having a sufficient volume to entirely contain at least one person and containing air. The device includes a gas generator configured to generate and release a gas into the enclosure chamber such that the enclosure air pressure is increased or maintained above the environment air pressure to prevent entry of environment air into the enclosure chamber. The generator is preferably configured to generate the gas by a chemical reaction, and preferably includes a quantity of at least one reactant, such as sodium nitrate, sulfuric acid or ammonium chloride, and initiates chemical reaction of the reactant to generate the gas. Furthermore, the pressurization device is preferably incorporated into an air treatment system including an oxygen generator that generates and discharges oxygen into the enclosure chamber. |
