Product review (5 stars): Vicks WF2Humidifier Filters
About a year ago I bought a Vicks Humidifier as we live in a very low humidity climate.  Little did I know that the filter was fragile.  I had turned the machine off for a couple of weeks and found the filter had degraded to the point of being unusable.  I went to Amazon.com and found this site and purchased a two pack.  The filters are an exact replacement and the humidifier works very well with the replacement filters.  In the future, I may look into a micro mist humidifier because of the fragile nature of the filter.  The replacements were fair priced and were shipped quickly.  Glad to have the machine working as the humidity, outside, is now in the low teens, where inside the home is in the mid to high 30's.