Product review (5 stars): Better than the other ones sold on Amazon
I bought the $15 filters sold by Vornado previously, since it's OEM and OEM should be good. Turns out, it's not OEM and those filters were terrible. It was bad at sucking up the moisture to be evaporated.

Seeing how  these are $3 for a set (excluding shipping), I decided why not...

There is a HUGE difference between the two. Without a doubt the best.