NosGUARD Mildew Odor Control Bags Slow Release System *25-PackEliminates mildew odors and prevents mold formation in enclosed spaces during storage. Designed for boats, RVs, cabins, and storage lockers up to 1,000 cubic feet. The slow-release vapor system removes odor-causing bacteria while maintaining air quality.Features: EPA-Registered to control odor-causing bacteria, mold, and Mildew, and Chemical Odors. Fast Release System Works in as little as 4-6 hours, or can be left overnight. More than an air freshener: destroys odors without masking them. CIO2 Vapor Technology permeates every area and surface. Directions:For slow release, long-term storage: Remove white pouch from foil and place in the enclosed tray. Use one pouch per 1000 cubic feet. Each pouch treats an area up to 10 x 10. Ventilate area for 10 minutes before re-entry. Place tray with pouch in center of area, ensuring pouches are evenly spaced for maximum effectiveness. Repeat treatment before odors reappear. table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Truck Freight: No Oversized: No