The EMAX air dryer is the only energy efficient dryer systems with aluminum refrigerated air inner cooler. The air is filtered of all solid particles 0.01 micron and larger. Clean, dry compressed air leaving the dryer minimizes maintenance and repair and also reduces internal dryer contamination. . We designed them with Non-corrosive inner and after cooler. Our dryers feature stainless steel heat exchanger for maximum dryer life and less maintenance. Emax Air dryers are UL-CSA approved scroll compressor & electric system for high efficiency and durability. They feature adjustable hot bypass for complete dryer function in low and high CFM flow preventing dryer freeze up.