Love the humidifier but as already being mentioned the screw on valve is very poorly designed and breaks. It broke within the first month. Even worse, you don't have replacement and you can't use the humidifier without it. I have glued it back twice. Willing to pay to buy a couple but you really should out free replacements.
If you are reading the reviews, you hopefully will address the issue and do so QUICKLY.
By the way, you have a hotline phone number and do business in the USA, but when you call the hotline you only hear French, to be international you need to do better.