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, 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, basically has become an industry. The hospital is a special occasion back indoor air purification device brand, the level of air quality 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 air ≤500 human health and how much the relationship? Airborne bacteria, how to kill, we take a look. In fact, after the year 2000, everyone's understanding of environmental pollution is also focused on industrial emissions, formaldehyde, but with the level of awareness of indoor pollution continues to improve, people discovered that indoor pollution caused by industrial emissions are not only the return air purification equipment principle, formaldehyde, but there are a variety of microorganisms, bacteria, germs, benzene, ammonia, radon, TVOC formaldehyde, and benzene, toluene, xylene and other pollutants. It is the increase in awareness return air purification equipment prices in the market gradually ended like to remove all kinds of products to solve the problem of indoor pollution dominated the situation, but also to stimulate the people to all-round solution of indoor environmental pollution problems desire. Indoor environmental health issues in China and the world has become a great problem. Now they mostly say air pollution is due to the impact of various public gathering places within the chemical and biological factors such as human activities, causing discomfort to humans or injury to human health (such as acute injuries, chronic injuries and potential harm). Scott recommends using a central air purifier or air purification and disinfection machine. Return air purification device parameters | Wei a recommendation (certified) | Jiangxi return air purifying device provided by the Dongguan City-a Environmental Technology Limited. Dongguan City-a Environmental Technology Limited (www.v-1.com.cn) Dongguan, Guangdong, a leader in environmental protection products processing, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer demand. Wei, a leader in the environment with the staff warmly welcome all inquiries negotiations to create a great environment, a better future.