With more and more serious environmental pollution, air quality has become the focus of national attention. Nowadays the sand storm in Beijing is very serious. Accordingly, people pay more and due to the increasing requirement of the quality of people's life, original residential air filtration system cannot meet the needs of living. Greater performance of Dust filters efficiency becomes the preferred alternative to the original air filter. But compared with the common glass fiber filter, the filter medium cost is higher. The application of electrostatic filter has also been a certain limit. Therefore, discount air filter has been more and more popular.
Now people realize that the air filtration system not only protects mechanical equipment, but also protects human being. As a result, air filtration is finding wider and wider application range. But people have made a lot of effort in constant innovation and enhancing the dust filters efficiency. In the 50s, commercialized discount air filter had become a registered trademark and it was a general term for the very efficient filter. In ten years, the filter designers worked hard to meet the higher demand for higher air quality. At the same time, they were getting ready to adapt to all kinds of high technology industry development such as aerospace, dispensing, hospitals, health care, nuclear fuel, nuclear energy and electronics micro circuitry (computer chips).
As for air pollution from factories, there is the strictest requirement for toxicity. And people may have doubt with the Discount Air Filters. Actually, only some heavy metals such as mercury, arsenic, chromium and beryllium have great toxicity. In terms of air toxicity, the United States and Germany have gone through the new more stringent legislation. After the implement of new legislation, air toxicity's limit has reduced 4 mg/m3 from 20 mg/m3. To achieve this goal, the factory needs more advanced filters to remove the particles. Some German companies using traditional folding fine glass fiber like HEPA filter to improve dust filters efficiency together with pulse air purification mechanism.
HEPA filter as a discount air filter in the bio-medical field is mainly used for filtering organisms such as bacteria and viruses in the air. Therefore, it can prevent and control the bacteria and viruses and other organisms causing the spread of disease. In general, the medical use of HEPA filtration system also uses high-energy ultraviolet merge modules to kill bacteria and viruses. And usually the dust filters efficiency can achieve 99.995%. Many vacuum cleaner as a part of their filtration system also uses discount air filter. This is good for asthma and allergy victims because the discount air filter can filter out particles that can trigger allergies and asthma symptoms (such as pollen and dust mites). In fact, HEPA filter is effective in the vacuum cleaner which must be designed to make all the air inhaled machine and discharged through the filter. And as a result of additional density, HEPA filter requires a more powerful motor to provide adequate cleaning power.
