Great humidifier - very user friendly set up and low ongoing maintenance. The touch screen control panel is really straight forward. You can choose to use the humidifier + purifier functions or just use the device as a humidifier, which is a nice option to have if you don't feel like using the purification. For the purification features, all you do is add non-iodized salts into a filter - a simple cheap table salt should do the trick. It comes with a scooper and a bottle for the salt to ensure proper measuring. It’s a little bigger sized than other options on the market but that allows the machine to go longer without refilling, and having the purification feature is great! It is also very sleek looking and quiet.