What are the standards for oxygen generators?

The national standards for medical oxygen concentrators include power failure, temperature, low oxygen concentration alarm, noise, oxygen concentration, output pressure (flow rate), continuous working capacity, indicator light, air tightness, etc. The following picture shows an oxygen concentrator's Technical Parameters. As an ordinary consumer, the most commonly viewed standards are flow rate and household oxygen concentration, because compressors and molecular sieves are the core of oxygen production flow and oxygen concentration, and they are also the most expensive parts of manufacturers.

The working principle of the oxygen generator

The oxygen generator for home use adopts the adsorption performance of molecular sieve, through physical principle, uses oil-free compressor as the power to separate nitrogen and oxygen in the air, and finally obtain high-concentration oxygen.

Oxygen generator accessories

The core hardware of the oxygen generator includes a compressor, molecular sieve, four-way valve, filter, heat dissipation, and silencer system.

The quality of the compressor determines the continuous working ability of the oxygen generator. The molecular sieve determines the oxygen production efficiency of the oxygen generator. The four-way valve is a nitrogen and oxygen exchanger. The filter is divided into 1-3 levels to remove impurities. A good radiator is conducive to the life of the machine. The muffler system determines the level of noise.

Compressor: determines the continuous operation performance of the oxygen generator

The more well-known international brands of compressors include American brand Thomas and Italian Natuzzi. Imported oxygen generators generally use American Thomas compressors, which have the advantages of long life and good heat dissipation. The well-known domestic compressors include Guangshun, Shengyao, and Yuqi. Among them, Guangshun is used for high-end compressors. Many low-cost oxygen generators for sale mostly use unknown compressors for the purpose of compressing costs. The disadvantage is that the noise will increase after the machine is used for a long time.

Molecular sieves

Determine the efficiency and purity of oxygen production. French lithium-based molecular sieves and American molecular sieves are mainly on the market. Speaking of the difference between the two molecular sieves, the conversion efficiency of the American sodium sieve is not as good as that of the lithium sieve, but it is stable.

The French lithium sieve produces oxygen quickly, but it is easy to get damp and the molecular sieve fails. French lithium molecular sieve is commonly used in the market. Therefore, it is recommended that the oxygen generator should be ventilated and dry and run regularly to prevent the molecular sieve from being damp and causing the oxygen concentration to fail medical standards. It is best to use a third-party testing instrument to test on a regular basis, and the inside of the machine may not be accurate.

How much molecular sieve is filled determines the ability to continuously supply oxygen. The molecular sieve will wear out during operation. If the filling technology is not tight, the oxygen concentration will decrease after the machine is used for 1-2 years. Some machines have no alarm function, which is difficult for ordinary consumers.

Four-way valve function

There are a total of 4 holes, connecting molecular sieve, compressor, cooling copper pipe, exhaust pipe. The role is to retain oxygen, eliminate nitrogen, and maintain the continuous oxygen supply of the machine. If your machine is turned on and the compressor can operate normally, but the molecular sieve does not work (alternating sound), it is likely that the four-way valve is damaged.

Filter: Divided into 1-3 level filters

The first stage is a washable sponge body with relatively large holes, which plays a role of the primary filtering of air impurities.

The second level is the filter core paper with higher density, with smaller holes, which can filter the smaller impurities in the air.

The third stage is the oxygen outlet filter, which is fixed inside the machine and cannot be replaced by ordinary consumers. As long as the first and second stages are well maintained, the third stage is within the life of the YG company oxygen generator and does not need to be maintained.