- 1). Run a dehumidifier in the storage room. Purchase one that best matches the size of the room and the typical dampness of the space. For example, a dehumidifier that condenses 10 pints of water a day usually suffices for a storage room that is approximately 500 square feet and only feels damp during humid weather.
- 2). Make some home improvements to reduce the overall moisture levels in the home. For example, install or fix a vapor barrier in the crawl space. Unclog downspouts and gutters. Slope the ground soil away from the house rather than toward it. Vent the dryer outdoor, and install or fix bathroom and kitchen exhaust vents. Replace single-pane windows with double- or triple-pane ones, and unblock any furnace vents.
- 3). Absorb excess moisture using one of several moisture-absorbing materials. For example, fill three or four open containers with kitty litter. Activated charcoal, silica gel, mothball crystals and calcium chloride also absorbs moisture, according to North Carolina State University.
- 4). Keep on a 40-watt light bulb to keep moisture levels low. The light bulb helps keep a small storage room dry.
- 5). Open the door of the storage room, even if it's just a couple of inches. This improves ventilation, which also keeps humidity levels lower in small spaces.
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