We bought this humidifier since it works so well with all types of water. We love the color change feature a lot, but we love how easy it is to clean even more! For years we had gotten other humidifiers with tight, hard to clean spaces. We never could get them clean, and ended up replacing them every year. With the MistAire Eva, we only need to replace the fliter, which is much easier. No tight spaces in the basin that holds the water, so it's super easy to wipe down and keep clean.