Our bedroom was always humid and I thought nothing could help, until I purchased the Frigidaire Dehumidifier. I am amazed at the amount of moisture it removes. I set it and it runs as needed or I put it on the constant setting, or use the timer function, the bedroom is so much cooler at bedtime. It will run at night if I want it to but most of the time I don't have to. The large reservoir is perfect and eliminates worry with the auto shutoff. I wish I purchased this item years ago.