Product review (3 stars): Same complaints I am seeing across the board...
Like many other filters of these on the site, i had these for about 2 weeks and the life span is almost over.  This is taking extreme care of flipping them over every night, and soaking them ever couple days prior to running the humidifier.  I run multiple humidifiers in the home in all our bedrooms every night.  It seems all of them are performing the same.  Can't recall what the original filters were like, but i remember being able to use these filters for over a month at a time easy.  Wish i could tell what changed.... Maybe it is the size and/or quality of the materials...

If someone finds a seller that is worth the buy, i'm open to suggestions, otherwise i think i'm stuck buying these for now

Just FYI, i am not having any mold issues like others have expressed on other sellers, however the filter is getting crusted with the yellowish tone from i guess drying up near the top of the fan even though i never run it completely dry...