I bought the Europace 216 for the bomb shelter. Very quite and energy efficient. Turn it on 24/7 and the electricity bill was hardly affected by it. Some people ask why buy such an expensive dehumidifier, use HIppo lah. Prior to this unit, my bomb shelter always smell musty and moldy. Used those Hippo disposables but their absorbancy rate is too slow. Now my bomb shelter smells clean and feels drier - I can spend 15 mins in there digging for my stored away stuff and not sweat like crazy. Btw, if you turn on 24/7 during rainy season, the bucket will fill up in about 3 days. Now drought season can last longer - approximately 5 days.