Because they are scaled-down, they also don’t need a pump for automated drainage. As for other desiccant dehumidifiers, they don't need a reservoir tank or drain hose for your collected moisture. However, industrial desiccant types do must be ducted outdoors or by way of a number of rooms to distribute https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/