We constantly believe that one's character decides products' high quality, the details decides products' high-quality ,together with the REALISTIC,EFFICIENT AND INNOVATIVE crew spirit for Air Conditioner, air to air heat recovery core , air purification system , hospital air ventilation ,Ventilation System heat recovery core . should you have any query or wish to place an initial order please do not hesitate to contact us. The product will supply to all over the world, such as Europe, America, Australia,Paris , Saudi Arabia ,Latvia , Albania .We have been in operation for more than 10 years. We are dedicated to quality products and consumer support. We currently own 27 product utility and design patents. We invite you to visit our company for a personalized tour and advanced business guidance.