Product review (5 stars): Peace of mind
We have hot water heat in our 125+ year old house.  Ironically, it's a very dry heat, and humidifiers are a must in the winter.  The Sunbeam Humidifier Bacteriostat Solution gives me peace of mind, so I don't worry about the nasties building up in my two big humidifiers.  It's easy to use--you just pour it into the water tank.  It's odorless, and the 32 oz. size will last a while.