Product review (5 stars): The best in my opinion/experience
Does the job without odors and at a reasonable price.  I just pour a small quantity into my humidifier water every few fillings -- live on the edge of a semi-arid plain, have to fill the humidifier twice a day, morning and evening, during the drier months of the year, once during rest of the year.  So use it about once a week, filters good for extended period where without I had to change more than once a month due to buildup of mold.  Now with BestAir only have to change filter about every other month.  Highly recommend it.

WARNING:  As is true of ALL bacteriostatic fluids, if you get it on your skin WASH IMMEDIATELY as can cause chemical burns.  I usually pour while wearing glove on hand that holds humidifier filler door open.