What is DampRid. Think of DampRid as a dehumidifier that doesnt need electricity. Its the convenient, all-natural way to absorb excess moisture in the air that can cause stale, musty odours, while preventing damage to your valuable possessions. DampRids crystals absorb excess moisture in the air to create and maintain the optimal humidity level in your home, storage areas, cabin, boat, car, RV or wherever moisture is a problem. Indoor air thats as fresh as the outdoors. DampRid products have been providing effective moisture and odour control to homeowners throughout the country for more than 70 years. Its cost-effective, nontoxic, all-natural and simple to use. And unlike sprays and candles, DampRid attracts and traps excess moisture to eliminate musty odours.