A desiccant dehumidifier uses silica gel or lithium chloride wheels to adsorb moisture from air. Effective at very low temperatures and humidity levels where refrigerant LGR units stall. Used on specialty Class 4 drying, large commercial losses, and cold-climate winter work. Per IICRC S500 §12.5.
Category: Water DamageReviewed: 2026-04-20Source: IICRC S500 §12.5
RP
Ryan PennyIICRC WRT/ASD/AMRT/FSRT/OCT · MI Builder License #2101187907 · Family-owned restoration in West Michigan since 1981.
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