Since They are really smaller, In addition they don’t require a pump for computerized drainage. As for other desiccant dehumidifiers, they do not need a reservoir tank or drain hose to the gathered humidity. Even so, commercial desiccant types do must be ducted outside or by way of numerous rooms https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/