Different types of desiccant dehumidifiers perform in alternative ways, but the most crucial process they use to extract humidity from the air is either absorption or adsorption. Absorption takes place once the desiccant compound dissolves as it will take moisture in the air, as is the situation with dampness absorbers. https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/