I. Working principle of domestic oxygen generator-molecular sieve
The working principle of domestic oxygen generator: adopting molecular sieve physical adsorption and desorption technology. The molecular sieve is filled in the oxygen generator, which can adsorb nitrogen in the air when pressurized, and the remaining unadsorbed oxygen is collected and purified into high-purity oxygen. When the molecular sieve depressurizes, it discharges the adsorbed nitrogen back to the ambient air, and can adsorb nitrogen and generate oxygen when it is pressurized next time. The whole process is a periodic dynamic cycle process and does not consume molecular sieve.
Second, buy a household oxygen generator
The oxygen concentration output by the oxygen generator must be greater than 90%, which can be detected by the oxygen monitoring device provided by the instrument or machine. The oxygen generator with constant cumulative timing function should be selected to provide objective and accurate data for long-term maintenance and service in the future. Equipped with cumulative timer is a mandatory requirement of international standards, and it is also the embodiment of product quality. The service life of oxygen generator (oxygen generator) should be guaranteed for tens of thousands of hours. Choose a low-noise oxygen generator (oxygen generator), the noise level should be lower than 45 decibels, otherwise it may affect the rest of yourself and others, especially at night. In addition, the following matters should be noted:
1, the principle of molecular sieve oxygen production is widely used in domestic oxygen generators, so the adsorption performance and service life of molecular sieve are very important, and its installation process is also very critical. When purchasing, you should choose an oxygen generator with integrated metal structure and automatic early warning filling of molecular sieve.
2. For patients with respiratory and cardiovascular diseases, the performance requirements of domestic oxygen generators are more demanding. When purchasing, choose a machine that can meet the standard medical indicators and provide oxygen continuously for a long time.
3. Household oxygen generator is a medical and health equipment, not a healthy and fashionable product. There is no need to choose a deformation machine that is not suitable for fancy appearance, but a machine with excellent structural performance, small size and ideal heat dissipation.
4. The oxygen generator that has passed ISO international certification and CE European quality system certification is an important guarantee for purchase. In addition, the time to market is also very important. It is best to choose a machine that is more than two years old.
5. When purchasing an oxygen generator, you should choose an oxygen generator/oxygenator manufacturer with a long history and strong strength. After-sales maintenance and parts replacement of domestic oxygen generators are very important. Only manufacturers with long brands can guarantee sustainable development and future maintenance services.
6. According to the relevant research of FDA, the average user needs about 3 liters of oxygen per minute at 90% concentration, so users are advised to choose high-flow machines.
7. Remote control is not an essential function. This function has certain risks in medical treatment, and the absorption rate of oxygen-absorbing wheat is actually very low, which is almost negligible.
8, with cumulative timing function. It can count the service life of oxygen machine and provide objective and accurate data for long-term maintenance and service in the future. International standards require that the oxygen generator be equipped with an accumulative timer, which is also the embodiment of product quality. A good oxygen generator should have a service life of tens of thousands of hours.