We take pleasure in a really excellent name amongst our shoppers for our exceptional product or service excellent, competitive rate and also the greatest services for HEPA Filter, Total Heat Exchanger , Residential projects ERV , heat wheel ,heat wheel . We will continually strive to improve our service and provide the best quality products with competitive prices. Any inquiry or comment is highly appreciated. Please contact us freely. The product will supply to all over the world, such as Europe, America, Australia,Liverpool , Guinea ,Brunei , Chicago .The quality of our products is equal to OEM's quality, because our core parts are the same with OEM supplier. The above products have passed professional certification, and we not only can produce OEM-standard products but we also accept Customized Products order.