Product review (2 stars): Filter too flimsy -- not same as original Manufacturer version
I bought two of these filters from Accumulair and I assumed that they were made to the same specification as the manufacturer's version.  When they arrived, they appeared flimsy, and I thought the original filter I had was a little more stiff.  Never the less, I was able to get the filter to stand up straight in the unit, at first.  After a week or two of use, the filter began to sag.  Eventually, the filter collapsed in the unit making it nearly impossible for my humidifier to keep up.  This happened to both of my filters in a matter of a few weeks.  It wasn't until now that I realized that the construction of this filter is different than the one provided by the original manufacturer.