Considering the fact that they are lesser, they also don’t require a pump for automated drainage. As for other desiccant dehumidifiers, they do not demand a reservoir tank or drain hose to the collected moisture. Nonetheless, industrial desiccant versions do should be ducted outside the house or through several rooms https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/