This article is perfect for me. I had a bit of moisture in the bath-room that has no ventilation system but a door to the toilet where a window is, but in winter, it is not always recommended to the open too long because obviously, the boiler starts up. I also have a little moisture ds the living room because the Dender was once considered ds streets that have changed public highway, roadway traffic (long ago already!). So I opted for this unit after much research and I must say I am perfectly happy after a month of use. He cut is only if the tank container is full. It makes a little noise but quite lightweight (not recommended however ds a room) The product is highly resistant lining. The functionality is as described ds and amazon reviews of other customers perfectly match the product. I have not yet calculated the energy expenditure but no matter for now because this device rule my problem perfectly. I have already noticed the decrease in humidity ds these parts. I have to buy a second for failing to move between the two parts. In fact, it has practical wheels but if your home includes small steps, stairs to level differences, it is a bit heavy for the weakest or least say "costotes".