Product review (5 stars): Finally a good filter!
Ive tried a few different filters for my humidifier, and these are the best so far. The others were stained, falling apart, and clogged within a couple weeks to a month. So far in 2 weeks Ive seen no appreciable deterioration in this one, and the humidity level is much better. Good price for 3 filters, and I like the way the expanded metal is sandwiched between layers instead of being exposed. The outer layer is a stronger material than any of the others Ive tried as well. Highly recommended!