Desiccant Systems Desiccant Systems Commercial cooling equipment dehumidifies air by dropping its temperature below the dew point, causing water to condense on the coil. From there it is drained from the unit. Achieving that humidity in the space would require a much colder coil temperature. Needless to say, after the water was removed, the air would have to be reheated. This is the domain of desiccant based systems.
Desiccant systems remove moisture directly from the air without cooling it.
In fact, they usually end up heating the air. Consequently, desiccant based systems tend to be used in a series with conventional cooling equipment. As in almost any technical area, there are several alternatives. Both capture the moisture in the air as it passes through. Desiccant systems are widely used in low humidity applications such as pharmaceutical powder production and packaging.