Concrobium® Moisture Grabbers® eliminate excess moisture for cleaner, fresher air. Excess moisture can cause unpleasant odors, mold and mildew stains and can damage items. Moisture Grabbers® absorb and trap excess moisture to create optimal humidity levels, without causing excessive dryness. Anti-Spill technology allows moisture to be absorbed through the lid, yet protects from spills. The Moisture Grabbers® refillable container can be easily refilled with tablet refills (sold separately).