Briefly describe the working principle of the PSA oxygen generator?

The working principle of the oxygen generator is to use air separation technology. Firstly, the air is compressed at a high density and then the difference in the condensation point of each component in the air is used to separate the gas and liquid at a certain temperature, and then it is obtained by further distillation; The working principle of the oxygen generator: the use of molecular sieve physical adsorption and desorption technology. The oxygen generator is filled with molecular sieves, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and becomes high after purification. Pure oxygen.