Gently warms and circulates the air to prevent condensation and mold. Ideal for boats, RVs, cabins and basements. Draws only 120 watts, with a built in shut off switch to prevent overheating. No moving parts and designed to run continuously for extended periods. Measures 13.5"L x 10.5"W x 4"H. This boat air dryer is made in the USA and features a 2 year warranty.