1. The choice of the control parameters for wind chassis air flow, total pressure, efficiency, noise, and electrical power. There are centrifugal and axial flow. 2. The provision of the wind chassis fan Jiangxi new wind ventilators, help silencer. 3. Fan the selection, should take into account the loss of the piping system leakage, calculation errors, as well as the actual fan wind, air pressure negative deviation fresh air ventilator, the general air volume of 1.05 to 1.1, pressure of 1.10 to 1.15 safety factor. But not using too large, long-term in order to prevent the fan zone inefficient operation. 4. Note the pipe resistance characteristics matching networks and fan characteristics. For the stable operation of the fan, the fan should be made to work in the vicinity of its maximum efficiency point, the operating point of the fan performance curve to the right of the peak point of the total pressure (ie, the amount of side winds, and generally all-pressure peak of 80% ). Implementation of the program are: to rely on mechanical air, the wind, forcing the formation of new wind flow field within the system. Which uses the benefits of XQ-6A-type machine outdoor fresh air into the room, with the benefits of XQ-6B-type machine or in the benefit XL- series porous convection dryer indoor stale air from the outdoors. The product system is a time to keep indoor air clean and fresh new environmentally friendly appliances. This independent indoor air exchange, purification circulatory system Shandong new wind ventilators, the exclusion of indoor air pollution at the same time, enter 100% natural fresh air and fresh air enter the room first by filtration, sterilization, heat, oxygen and other item processing, then into the room. Shandong new wind ventilators, ventilation equipment Plumper (certified), fresh air ventilator provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Rich ventilation equipment in leadership with the staff warmly welcome all inquiries negotiations to create rich, ventilation a better future.