Liquid desiccants may be among the most valuable HVAC technologies of this young millennium. Some leading researchers and mechanical engineers — and a growing number of large facility owners with significant humidity control challenges — are betting on it. As reported recently, liquid desiccant dehumidification is “an approach to effectively manage humidity under challenging conditions,” including facilities in humid climates with high outdoor air (OA) requirements, applications with precise humidity control needs, and wet industrial applications including food manufacturing.1