ATTRACTS AND TRAPS EXCESS MOISTURE: Use Arm & Hammer Moisture Absorber and Odor Eliminator Tubs to attract and trap excess moisture from damp spaces. ELIMINATES ODORS: Arm & Hammer Tubs are a convenient, effective way to continuously collect excess moisture in the air that can cause stale odors. VERSATILE APPLICATION: Ideal for use in closets, bathrooms, laundry rooms, and mud rooms, and anywhere that excess moisture and stagnant air are present. LONG LASTING FRESHNESS: Each tub offers long-lasting freshness for up to 60 days. (Duration will vary based on temperature and humidity.) EASY TO USE: To use, simply pour crystals into moisture absorber canister and close lid. Discard once the moisture absorbing crystals have fully dissolved. Arm & Hammer is a registered trademark owned by Church & Dwight Co., Inc.