The Hydra LG Personal Series Cigar Humidifier is designed to automatically regulate the humidity inside large cabinet or commercial humidors up to 16 cubic feet in size, yet will work well in regular desktop humidors as well, as this unit has a very accurate humistat that will shut off the moisture delivery when the optimum humidity level is reached. The high capacity water cartridge will mean that it will be quite a while between refillings. But you won't have to worry about running out because it has both an audible and visual "low water" indicaror. And to keep you from having to constantly opening your humidor to check levels, there's a remote with a 54" cord that will monitor conditions and allows you to make adjustments without lifting the lid. The dual fans will quickly bring the levels back to the ideal level when you do have to open the box, and the 1000mA power supply is more powerful than most competitive units.