Differing types of desiccant dehumidifiers get the job done in other ways, but the leading process they use to extract dampness within the air is either absorption or adsorption. Absorption occurs if the desiccant substance dissolves as it requires humidity in the air, as is the case with dampness absorbers. https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/