Product review (5 stars): Saved our humidifier and our money
This product has saved us from just tossing our expensive humidifier. We have a WeMo humidifier, and the filters would only last two weeks (unlike the ones it comes with, but that's another review) at 25 bucks a pop. We couldn't afford it. This treatment makes the filters last about 8 weeks, and we even have extremely hard water. I have noticed no smell from the addition of the treatment unlike some others have said. It has kept the humidifier so clean that I didn't even have to wipe it out when I changed filters, and it's usually so slimy I can't stand it. Do yourself a favor if  you have hard water and get this now.