Product review (1 stars): They go bad FAST!
I've ordered 2 of these so far and I'm not satisfied. Last time I ordered these were on march 20th of this year and I started to use the new one on the 24th with the exact lasko humidifier it's supposed to be used in.  It's been a full month and the filter is already getting yellow and crusty. The water flow is slowed way down and I'm going to call the 1-800 number that's located inside my humidifier for their replacement filters because these are cheap and worthless. I thought these were supposed to last 3-6 months and they can't even hold up for a month. Pathetic!!