Wei, an air tank VBK-G air purifying system market analysis 1, the current market situation, indoor air pollution has become an issue of global concern. In the United States each year due to indoor air pollution caused by the loss caused by the disease for at least $ 4.4 billion back to the air purification device, there are 1.4 million people die of lung cancer each year. United States, Japan, Canada, the Netherlands and other advanced industrial countries total annual sales of air purifiers have been more than twenty million units, sales of 60 billion US dollars the price of the return air purification devices, has become a basic industry. The hospital is a special occasion indoor, air quality levels in hospitals and health is directly related to the health of health care workers, patients and their families. Health indicators in the hospital air by national technical supervision departments and health and epidemic prevention departments in strict accordance with relevant laws and regulations formulated. Bureau of Technical Supervision and the Ministry of Health People's Republic of China People's Republic of China issued a national standard (GB15982-1995) - hospital disinfection health standards. The total number of bacterial colonies within the standards for various types of environmental air hospital in the following table: Ambient air quality standards range of categories (cfu / m3) class Ⅰ ≤10Ⅱ Class A common operating room operating room, delivery room, nursery, premature children room, common protective isolation room, sterile supply room, a burn unit, ICU ≤200Ⅲ class pediatric ward, obstetrics and gynecology examination room, injection room, dressing room, therapy room, supply room clean area, emergency room, laboratory, each Class A ordinary ward and room ≤500 central air purifier along with social progress, scientific and technological development, improved living standards, followed by derivatives on air pollution getting worse. In recent years the world's climate, environment, national climate worsening environmental pollution, worsening air pollution levels can not be underestimated return air purification equipment brand, although the country a punch, the government introduced a series of policies, customs, stop, and, turn many with contaminated properties business, but air quality is still poor, cloudy weather increased the number of successive overlapping, to give people work and live bring many difficulties inconvenience. 2013 air purifier favorable market, increased sales, it is sufficient to see the people on the air pollution, haze weather the fear and the desire to improve the ambient air. Dongguan City Environmental Technology Co., Ltd. after a technical innovation, based on disinfection and purification technology based on semiconductor return air purification equipment brand, all kinds of central air purifier: return air type purifier, pipeline cleaner, plug-light hydrogen ions purification , a ternary ion technology air purifier ① modular cabinet invention polymerization, in the domestic air disinfection and purification products in the first ternary ion technology. ② electron in a semiconductor fiction - voids and separation of composite core technology is the application of electric light and the combination of technology law, implement electronic fiction - voids and separation of the complex, a breakthrough semiconductor catalytic efficiency. ③ Applied Optics lens amplification principle, invented a mirror funnel-phase reaction system, greatly increasing the irradiation intensity of the UV lamp, energy-saving and environmental protection, but also offers the potential for the semiconductor layer. Return air purification device principle _ Gansu return air purification device provided by a quality _ Dongguan Wei Wei an Environmental Technology Limited. Dongguan City Environmental Technology Co., a (www.v-1.com.cn) strong, credible, environmentally friendly products in Dongguan, Guangdong processing industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead a great environment and you work into the brilliant, for a better future!