Fire exhaust fan, said during use, not only to make the appropriate use and maintenance work, and to the performance of fully displayed, efficient use of the fan, so as to increase its range of applications, the majority of user acceptance . So we should make energy-efficient exhaust fan fire effect on how the full performance of it, today, as we detail below: For some relationships exist between the different flows, we adjust the way it is divided into several different approaches that regulate the way little effect on energy savings, even not only energy efficiency, but because of the presence of the device to adjust the power consumption more. Speed ??adjustment curve closer to the ideal curve. Therefore, the speed adjustment method is superior, especially the use of variable frequency motor speed control of energy-saving programs for the best, but the need for additional frequency devices. Two-speed fan at the top health nuisance exhaust system made use of well-known dtf together exhaust fan, type a lot of smoke and hot fire, and consume large amounts of air. On its harmful effects, particularly at night to smoke, cigarette in his mouth many types of toxic fire temperature exhaust fan price factors, both non-toxic and has a vertical exhaust fan fire, burning the same may be due to anoxic suffocating to death. Every thing back to produce fire in burned persons, most are also the first to be smoked fainted after being burned, and smoke when fire spread fast rate, the extent of up to 0.5-0.8m / s, straight to reach 6-8m / s. In the fire, one that is fire, then a nuisance, smoke. Is off the fire extinguishing, broken smoke source, harm, exhaust system, compared with the supply of safe escape route and a favorable start the fire. Roof exhaust fan fire, Chen Yu-conditioning (certified), Tangshan City, exhaust fan provided by Wu Chen Yu Air Conditioning Equipment Co., Ltd. Wu Cheng Chen Yu Air Conditioning Equipment Co., Ltd. (www.wccykt.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 . Chen Yu-conditioning in leadership with the staff warmly welcome all inquiries negotiations to create Chenyu conditioning a better future.