PSA oxygen generator is an automated equipment that separates oxygen by adsorbing and releasing nitrogen from the air through the principle of pressure adsorption, desorption, and pressure reduction based on zeolite adsorbents. The zeolite molecular sieve is processed by a special hole type treatment process. The spherical particle adsorbent with micropores on the surface and inside is white. Its pore type characteristics enable it to realize the kinetic separation of O2 and N2. The separation effect of zeolite molecular sieve on O2 and N2 is based on the small difference in the dynamic diameter of the two gases. The diffusion rate of N2 molecules in the micropores of the zeolite molecular sieve is faster, and the diffusion rate of O2 molecules is slower. The diffusion of water and CO2 in compressed air is not much different from the diffusion of nitrogen. The final enrichment of the adsorption tower is oxygen molecules.Suitable for hospitals, oxygen bottle flushing, etc.