No RV owner welcomes mold and mildew. The presence of either is likely to cause an unpleasant odor and possible health issues. To prevent mold and mildew from forming in your RV, ensure proper ventilation and environmental controls in your vehicle. A dehumidifier can help reduce the level of humidity in the air. The next time you go on that trip this spring or summer, make sure to check out Camping World's selection of portable dehumidifiers and accessories.