This dehumidifier from Hydrosorbent includes an inbuilt recharge indicator. The indicator is originally orange in coloration, but it turns itself apparent when it needs a reactivation. They take in extra humidity within the environment by extracting water molecules into a desiccant product which draws drinking water. The unit self-regulates to https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/