Molecular sieve is a particle with multiple small pores and is the core component of oxygen concentrator operation.
These small pores are measured in micrometers and can be used to select which gas substances can pass through based on the size of molecules in the air. This oxygen production technology uses a physical method of screening the diameter of molecules in the air for oxygen production, and there are no side effects during the working process.
The oxygen concentrator uses molecular sieves as the key and compressors as the power to separate the oxygen and nitrogen accumulated in the air, ultimately obtaining high concentrations of oxygen. The view that "oxygen concentrators are filtration systems rather than oxygen production systems" is one-sided, as filtration is the primary step in oxygen production, ensuring that the incoming air is clean enough, the output oxygen concentration is high enough, and safe.
Strictly speaking, the filtration of an oxygen concentrator only consists of three levels: filter cotton, compressor oxygen inlet filter, and bacterial filter. Some brands promote fifth and sixth level filtration, which is not true.
