The World Health Organization recommends that annual average value and daily ↑average value of PM 2.5 should be 10μg / m³ and♣ 25μg / m³. This reference value is also strict for European and American coun♦tries. In 2006, the United States revised the PM 2.5 sta♥ndard, the average annual value and daily average value of 15μg / m³ and 35μg / m，while “the environmental air quality standard GB309δ5-2012 issued by the Chinese Ministry of Environmental Protection in 2012, the standard valu↔e of PM 2.5 is fixed at annual average value of 35μg / m&s♦up3; and daily average value 75μg / m³. However, the impl±ementation time of this standard is set at January 1, 2016.
In order to reduce the extent of exposure to air pollution, people are hopin≈g to create a cleaner air circulation system in relatively closed rooms. Air filtra☆tion membrane is one of the most effective air filtratiφon materials in the world. The maximum interception efficiency of particulate matte≠r of 0.3 microns (equivalent to 1/20 of hair) can reach 99.9∑7%.
At present, more than 90% of the£ air purifiers in the United States adopt membrane t→echnology, which is widely used in Sweden, Switzerland and Germany. However, the in✘novative technology is still in the exploratory stage in China's purification inφdustry. Air filter was born in the United States in 1940s after three years ÷of "Manhattan plan", this plan built an atomic bomb, also left $1.4 billion asse t, including a 9000 person of Los Alamos nuclear weapons laboratory. In the "Manhattan plan✔", in order to prevent the spread of radioactive contaminants in the air, researchers develop♠ed a membrane filtration efficiency, it is used to ♣wear anti nuclear biochemical products, divided into H12 to H17 and other levels, the filtering efficiency is from 99.7% to 99.9999% as to the diameter of fine particles larger than ✘0.3 microns.
Air filtration membrane made of interweaving of very fi✘ne organic fiber, the capture capability on the particle is very strong, small apertur&e, large adsorption capacity, high purification efficien'cy, and have ability to absorb water, purification rate for the 0.3 micron ☆particle can reach to 99.97%. Therefore, the effect of filtering partiλcles is very obvious. If you use it to filter cigarettes, the filter effect is almost 1↓00%, because the particles in the cigarette are between 0.5 to 2 micrπons, it cannot pass through the air filter membrane.∞
In the following decades, air filters played a key rol←e in preventing the spread of airborne bacteria and viruses. The medical air fi☆ltration system also uses high-energy ultraviolet rays to kill living bacte↕ria and viruses trapped in the filter medium. The system is widely used♥ in precision laboratories, pharmaceutical production, atomicΩ research and surgery, where high cleanliness is required.
In addition, some new model cabins also use this filter. Modern aircraft use air membrane filters to achieve air recirculation to reduce the spread of pathogens in the air.
In recent ten years, air membrane filtration technology has& been used in civilian from military, medical, the air purifiers and dust-aβbsorbing equipment widely used in the United States. In the past ten years, this technology has b✘roken through the two major technical bottlenecks. The first is the service liεfe of air filters, extending from the previous mont∞hs to years. In addition, because of the wind resistance is large for ×early air filter, wind pressure of ordinary axial fan is no t enough, as the technology matures, the technology makes efficient air filter §to successfully install in the air purifier.
Contact：
Tel:+86 592 6514970
Email：market@guochukeji.com
Skype：18060902001
WhatsApp：18060902001
WeChat：18060902001
TM: guochukeji
QQ：1641011431