The first time that I invested in a dehumidifier, I didn't know my refrigerant from my desiccant. In case that's you too ... humid laundry rooms, and dripping basements to test how effective they are ...

If you're dealing with a cooler area, like an unheated basement, consider a desiccant dehumidifier that's designed for those conditions." Finally, Gillis said you should maintain your dehumidifier ...