Product review (5 stars): It's a filter that works in the humidifier. No ...
It's a filter that works in the humidifier. No blue mesh on the outside, and I haven't noticed any issues with it. Whenever I've refilled the tank for a second time.. I take the time to flip over the filter as I noticed that even with past filters, the tops of them start to get really dry and can't seem to wick water. So I flip them to get an even wear? haha If that makes any sense.