Review on Pro Breeze Wireless Mini Dehumidifier: Compact, Cordless, and Powerful Solution for Small Spaces, Bedrooms, Wardrobes, Closets, Cars, and Gun Safes - Rechargeable & Non-Toxic by Ann George

The desiccant arrived with dark almost black crystals. I charged it in the lowest humidity room for four days and the crystals changed color to brownish instead of bright orange as shown on the product packaging. It took less than a week for the crystals to darken again, a far cry from the 20-30 day shelf life advertised in the product description. I bought another renewable dehumidifier (different brand) and it works great.