The E-333 provides dampness protection that is ideal for small spaces such as: Small closets: Eva-Dry prevents damage to fabrics and musty odors caused by excess moisture. Plastic Storage Containers: Absorbs musty odors, and prevents damage caused by excess moisture on stored seasonal clothing. Cabinets: Protects stored food from damage caused by excess moisture. Under sink: Keep the under sink area dry and mold free. Safes: Protect your valuable pictures and important documents from damage caused by excess moisture. This eco-friendly dehumidifier silently and reliably protects clothes and valuables from mold, mildew and moisture. The unit lasts 20-30 days before renewing.