Some innovations change everything. Take Cerades™, the first ever solid desiccant. Developed and patented by Atlas Copco, Cerades™ revolutionizes desiccant dryer design, efficiency and performance. And that makes all the difference for you as you enjoy better air quality, lower energy and service costs, and health and environmental benefits. The new CD 20⁺-335⁺ is the first dryer to feature Cerades™.