Product review (3 stars): On the fence
So, I had bought another product by this company that wasn't for cool-mist humidifiers. This one says it is. I used it for a week and noticed no difference in the humidifier staying cleaner longer. From the way it reads it's supposed to stop the white dust. I already fixed that problem by using water from a filter. So I can't really say if it stops white dust, but can say it doesn't stop pink gunk from forming in the humidifier. As another warning like on the other product, this product also has multiple warnings on it about not letting it touch your skin. No doubt, the dilution of it would lower those risks, but it still seems crazy to put something in a cool mist humidifier that can hurt you by touching you. I found the combination of the Protec cartridges and filtered water from the faucet filter has slowed the pink gunk and white dust better than anything else.