Slim design and easy installation: special body design for ultra-thin models, to bring great convenience to install, saves valuable building space; 4, Seiko secret agents: equipment components are made of high quality steel, eco-friendly materials, aluminum frame fresh air ventilation units, surface electrostatic spray technology processing, low power consumption and high quality fresh air ventilation unit, look beautiful and delicate. 5, the air filter design: built-in professional-grade air filters the best-selling new ventilation unit to ensure air into the room clean and fresh. How to choose a new wind ventilators? 1. The new wind ventilators for the room with a small ventilation with heat recovery equipment. The main control parameters for the selection of air flow, static pressure loss, the outlet total pressure, input power, effective ventilation rate, exchange efficiency, noise and the like. 2. The new wind ventilators performance should meet the requirements of Table 1, the device corresponds to the nominal air flow heat exchange efficiency value of not less than the requirements in Table 2. 3. In general, how much money a new ventilation unit, new air temperature of about -10 ℃, the exhaust side frost may occur, can be set up in front of the air preheater unit. 4. The device should be chosen to meet the relevant requirements of other standards and specifications. The new ventilation unit at reasonable prices, rose Swiss electrical, Hebei fresh air ventilation unit is provided by the Swiss liter HVAC Electrical Equipment Factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. L Swiss leader in mechanical and electrical staff warmly welcome all inquiries negotiations to create liter Swiss electromechanical a better future.