Product review (1 stars): Money Wasted Not Saved
In the five years it took to work through the various filter options/offerings ( HC-14, HC-14n, E-Filter, and then these) we never previously experienced what we saw when changing these filters.  There was mold UNDER the filter on the face of the humidifier itself and none on the filter.  Another 1st was finding mosquitos in the (nearly stagnant) water.  Filter rate of absorption is so very low that the humidity barely achieved 30% (other filters eaisly maintained required 45%).  Money wasted not saved by trying this "bargain" brand.