Since they are smaller sized, they also don’t need a pump for automatic drainage. As for other desiccant dehumidifiers, they do not demand a reservoir tank or drain hose to the collected moisture. However, industrial desiccant designs do need to be ducted outside the house or as a result of https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/