Warm summer air conditioners become the protector of mankind, but also the air conditioner itself has been plagued users congenital defects, indoor air pollution air-conditioned environment is the cause of air conditioning disease, respiratory disease, SARS virus, Legionnaires' disease outbreak and spread seeds. Tests to prove: After air conditioning, indoor air bacteria content is not open three to four times the room air conditioning, indoor air pollution has become the largest environmental factors on human health; low oxygen content in the air conditioned environment, fresh air issue has been too Less than solve; cold air conditioning exhaust heat recovery has been the lack of effective, energy waste shocking. Energy crisis has caused the world's attention, China has the energy as a long-term strategic approach to sustainable development. First, heat insulation and high air tightness of fresh air conditioned environment, a new concept of health determines the air-conditioned room windows for natural ventilation is bound to be replaced by a new 100% of the total heat exchanger air ventilation. The new wind ventilators according to user needs, a full range of air-conditioned environment displacement ventilation, so that the original house became silent, breathing organism, renewal, so that a variety of pollutants within the house, such as smoke, dust, odors, and other smell, all with indoor planned discharge, air to get rid of, so that the indoor air clean, comfortable, adequate oxygen content. The new wind ventilators has truly become a modern residential "cardio" is a new fresh air environmental health products. Second, the whole new concept of energy efficient heat recovery tech nano membrane technology, the level of reverse convection technology, antistatic maintenance-free technology, muffler technology applications, so that fresh air ventilator breaking the traditional heat recovery efficiency generally low technological bottlenecks, total heat recovery efficiency of more than 75%, a substantial increase exhaust energy recovery, with the new wind ventilators, not only can reduce the amount of air conditioning host one-time investment capacity and equipment, but also can reduce the overall system operating costs. Third, the new concept of air conditioning one's life partner of more than 90% of the time is spent indoors, air conditioning and ambient air quality and human health solidarity. Health = air + water + nutrition + regular exercise, the four indispensable, German cold fresh air ventilator fresh air not only solve the problem, but also the recovery of the exhaust energy, in line with a healthy, energy-saving concept, is the air conditioner indispensable companion products.