Product review (1 stars): Was hopeful... but didn't work.
The idea for this is great.... I was excited when I got them, hoping they would work as well as the regular ones, and be easy to clean & durable.  Well, the filters, right out of the box, in a freshly cleaned humidifier, did not work well at all.  I set my humidifier at 50% for my plants, and even though I was keeping the reservoir full of water and throwing in a splash of vinegar in the water, they never allowed the humidifier to get even close to the 50%!  It would get to about 38%, and that was it.  The different material obviously does not wick water like the regular ones do.  I've only had them in for a couple weeks, so I haven't tried cleaning them yet.  So, if you need to maintain a certain humidity level, these do not work.  I'm sure they humidify the air to a point,  but they obviously do not work well with the humidifier they were made for (hwf100).  I hope my memory is right on the model # lol.