Fresh air ventilator is a new wind chassis ventilation equipment installation, which uses a two-way ventilation, the fresh outdoor air (fresh air) into the interior of the pipe while the wind chassis, but also to polluted indoor air (old style) came to outdoors. Fresh air into the room through the air filter to protect the indoor air clean. Due to the winter and summer a large temperature difference between inside and outside, in order not to cause a two-way ventilation and indoor temperatures have caused large fluctuations in the fresh air ventilator is set to air heat exchanger wind chassis offer, so the old style and new style switching temperature, achieve both ventilation and also maintain the basic stability of the effect of indoor temperature. The difference between the new wind ventilators and ventilator or exhaust fan: The fan or exhaust fan only the limited outdoor air into the room, but not on the old air heat exchange. In this case, the summer and winter use fan or exhaust fan, it will bring to bear the burden borne by indoor heating or air conditioning to cool; large fan or exhaust fan noise, it is impossible in the bedroom (especially the children's room, old house) mounted fan; fan or exhaust fan is not air filter will cause indoor dust or respirable particulate matter pollution intensified. Wind chassis pictures, rich ventilation equipment (certified), wind chassis provided by Dezhou Plumper ventilation plant. Dezhou Plumper ventilation plant (www.frtfsb.com) (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, the maximum limits to meet customer needs. Rich ventilation equipment in leadership with the staff warmly welcome all inquiries negotiations to create rich, ventilation a better future.