This dehumidifier from Hydrosorbent comes along with an inbuilt recharge indicator. The indicator is initially orange in colour, but it surely turns alone crystal clear when it needs a reactivation. Not like other more substantial refrigerant-primarily based models from Dri-Eaz, the Dritec operates competently in subzero temperatures and lowers humidity https://dstdehumidifiers.co.uk/case-studies/desiccant-dehumidifiers-in-cold-stores/