Pacific NW Boater TESTED Product: H2Out Space Dryers. The marine environment is a moist environment! H2Out Space Dryers keep moisture on your boat under control. Where there's moisture there's opportunity for mold, rust, mildew, dampness and that unwanted "boat odor". Control your boat's environment and regulate moisture with H2Out Space Dryers. Infinitely reusable through simple regeneration, H2Out Space Dryers provide protection for 30-60 days before needing easy renewal. Just place in a conventional oven at 300-degrees for 2 hours and they're ready to adsorb moisture all over again! Available in 6 sizes, there's a self-contained and leak-proof dryer for every space. Great for home, office, RV and auto use, too!