This chapter covers (1) the types of dehumidification equipment for liquid and solid desiccants, including high-pressure equipment;(2) performance curves; (3) variables of operation; and (4) some typical applications. Using desiccants to dry refrigerants is addressed in Chapter 8 of the 2014 ASHRAE Handbook—Refrigeration. Methods of Dehumidification Desiccant Dehumidification Liquid Desiccant Equipment Solid-Sorption Equipment Rotary Solid-Desiccant Dehumidifiers Equipment Ratings Equipment Operating Recommendations Applications for Atmospheric-Pressure Dehumidification Desiccant Drying at Elevated Pressure Equipment Types Applications ISBN: 978-1-939200-26-6 (for I-P versions of chapters)ISSN: 1078-6066 (for I-P versions of chapters)