Product review (2 stars): Short lived filters and there are only 3 per box (not 3 sets)
I believe it's necessary to let everyone know that there are only 3 individual filters in the box, not 3 sets as the description says.  I purchased this as a replacement for the standard filters that I normally use and because they were cheaper and another review said they would work I figured I'd try it.  However, these were not a direct replacement (at least not right out of the box).  I was able to get these to fit by cutting off some of the bottom and then they were able to fit, so I was able to use them.  The life of these lasted less than a month, but as another reviewer stated, the wicks are a necessary evil.