The Arion's design is unique and solves the shortcomings of conventional humidifiers on the market today. Relies on a proprietary special solution combined with hydrogels enclosed in space-age plastic that allows moisture to consistently escape through its walls. Only requires only plain tap water every 1-3 months; the proprietary special solution combined with hydrogels will last for many years. Will not leak in your case and is easy to maintain increased levels of humidity in your case.
This humidifier maintains the posterity of wooden instruments with little maintenance required: fill it with water then seal it tight. It's a simple way to prevent cracking, decreased tonality, and warping of wooden instruments.