Review on Fette Filter - Vornado Compatible Humidifier Wicking Filter MD1-0002 (Pack of 4) by Tom Childress

These wicks are twice the thickness of the wicks that came with my Vornado humidifier. You get two sets of these wicks for the price of one set of Vornado wicks, and they're twice as strong. They have a metallic appearance of a layer in the middle. I hope that because of the thickness they will last longer than the ones that come with the humidifier. I use an anti-limescale treatment with them but after only 5 days the top of the filters have hardened with minerals. Since I haven't had this problem in the last two cities I've lived in, I believe the water problem is here in the greater Las Vegas area.