Product review (3 stars): Clearly thinner than the OEM filter
I removed the OEM filter on my Carrier large bypass humidifier, and replaced it with this one.  While the length and width of the replacement appeared to match up, the thickness of the filter was noticeably thinner than the thickness of the OEM filter.  It is not clear how or whether this will affect performance, but the difference was so noticeable that I felt the need to write a review.