Differing kinds of desiccant dehumidifiers do the job in alternative ways, but the key process they use to extract humidity within the air is either absorption or adsorption. Absorption occurs in the event the desiccant material dissolves as it's going to take humidity in the air, as is the situation https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/