Basements are notorious for higher levels of humidity. There is always dampness and musty smells in this part of our homes. Dehumidifiers are perfect to keep the air down there dry and safe for your entire abode. A dehumidifier for basement needs to be highly effective in order to deal with the moisture in the air. Needless to say, the unit needed for this part of your home has to be big, not just in matters size, but also how much moisture it can remove from the air at a given time. A 70-pint dehumidifier with an automatic defrost system will work fine. If however the problem becomes too big for such a unit, you might consider renting the large industrial units (renting a dehumidifier).