Product review (1 stars): Why recommend if its not to be used with ultrasonic????
So, In order to write a review you have to rate it with a star.  I haven't actually purchased this as it states not to use in an ultrasonic humidifier....YET, when I was searching for a new humidifier, happened to land on an ultrasonic one, this humidifier cleaner was suggested as something that I should purchase with the humidifier....why is that?  If its not recommended to be used with the particular humidifier, then why would it be suggested to purchase??  Does anyone know of any good cleaners or descalers that can be used with an ultrasonic humidifier without a filter??  I have been using vinegar to date to keep mine clean.