Damp Check Natural Dehumidifier Description The Damp Check Natural Dehumidifier is one of the best ways to dehumidify small spaces without all the noise that comes with other models. Simply place the dehumidifier in the area you want to dry and let it work it's magic, pulling water direct from the air. The dome naturally absorbs moisture from every direction, using its 360 degree construction to full advantage. The moisture is pulled into a slotted cone drainage system where it is flows from the chemical in the dome into the lower reservoir. This unit works in perfect silence, 24 hours a day and uses no electricity. Its footprint is small, only 7 inches wide, yet it clears moisture in rooms up to 100 square feet. You can use it anywhere from the basement to the bathroom to the bedroom to the attic. This little marvel is really great for use on boats and the reservoir holds up to ? gallon of water. Just empty it when you're ready! It's nice to see the results of drier, cleaner air.