Trane continually invests in air handler research and development of new products to adapt the changing needs of today?s HVAC market. Our focus on whole systems has led to the design of many custom options that can be incorporated into standard cataloged air handler, providing a more cost effective solution than a completely custom-built unit. These custom-engineered air handler solutions are offered as offered as factory-packaged specials that deliver Trane quality, enable simplified on-site installation, and provide proven, tested performance. The air handler solutions address such issues as humidity control, energy recovery, special acoustical needs, air filtration and the use of optional fuel sources.