Product review (5 stars): Best Performance!
Longest lasting and cleanest filter I've used in my Honeywell humidifier. It's a little shorter than others I've used but the biggest advantage is the lack of yellowish stain that plagued others. I clean my humidifier with bleach and the tray with some vinegar but this, again, has not developed the smell and stain of other brands. I'll only order this brand in the future.