The new air system and central air conditioning to send fresh air compared to what is the difference? 1) Although the configuration of the central air-conditioning return air, but can not be exchanged with outdoor air; 2) there is no exhaust air purification formaldehyde Cinderella, so the new wind has formed into the positive region difficult. New wind slightly improved air quality can not be completely new air purification Cinderella haze, polluted air can not be quickly exhausted to the outside; 3) central air conditioning is not enough fresh air purification, insufficient to meet the World Health Organization raised the amount of residential indoor air standards: every two hours Indoor air all changed once; 4) air duct is easy to breed bacteria, dust and other pollutants, and not easy to clean, there is no secondary pollution. Congratulations to the blue sky landscape flat king Heights # 3, Unit 2, 25-story building new wind system Townsend, Townsend central vacuum, high-end home integration facilities installed! Air purification air | yutai purification | Hirono Environmental Engineering (View) Ltd provided by Shandong Hirono Environmental Engineering. Hirono Shandong Environmental Engineering Co. (www.zdhjgc.com) is an industry leader in Shandong Jining, 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. Hirono leadership in environmental engineering staff warmly welcome all inquiries negotiations to create a wide field of environmental engineering a better future.