Should I use a sterilizing agent? Jay October 21, 2019 20:24 Follow No, this is not necessary. Instead, we recommend washing your humidifier regularly. Please see this article for washing instructions. Related articles How should I wash my humidifier? Should I dry all the parts after washing the humidifier parts? What is the size of the water tank for my humidifier? Can I use tap water in my humidifiers? Can I use aroma oil with my humidifiers? Comments 0 comments Please sign in to leave a comment.