Product review (4 stars): Seems to Work as Advertised
The intent of this product is to prevent bacteria, etc (bad stuff) from forming in the water basin and air wick of our Essick Air humidifier. We have used it for 3 wks now and thus far there has been no bacteria, algae, etc form in the humidifier water basin or wick. The heat of our Arizona weather can quickly breed such things. So, we are very keen on keeping our eye on the long-term effect of this product in preventing build-up.