Different types of desiccant dehumidifiers function in other ways, but the key method they use to extract humidity from the air is either absorption or adsorption. Absorption takes place in the event the desiccant compound dissolves as it takes humidity within the air, as is the situation with moisture absorbers. https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/