Product review (5 stars): ... add it to my humidifier daily and it works great! It has definitely caused significantly less algae to ...
I add it to my humidifier daily and it works great!  It has definitely caused significantly less algae to grow and, as a result, I have to clean the machine much less often. The product is very affordable, especially as an add on to an amazon qualified order. Pus, only needing to add a capful to a gallon of water, it will last quite awhile. I would recommend this product for all humidifiers.