Product review (2 stars): Worked good for a few months of non-continual use
Not long enough life for what I paid.  Still broke down and fell apart.  Tried all the stuff, washing in vinegar etc.  Worked good for a few months of non-continual use. I used it for a week straight then it would sit for a few days.  I'd wash it and start again use it for a couple of day and it would sit. Did this for about two months.  Then washed and it was starting to come apart where the layers were glued together.  I stored it for the next 9-10 months.  Got it out again and it wouldn't wick at all.  Soaked it in vinegar for a few hours and worked for a day or two. Then stopped wicking and was really falling apart the inside 3 layers just laid over.  It was stretchy and would not stay in the humidifier well.  I gave up and found a new vaporizer without a filter.  One weird note, it got a bunch of little clear beady things built up in it.  Don't know what that was about.