Product review (2 stars): Not as good as the name brand filters
Not as good as the name brand filter.  I bought two of these for my two humidifiers.  The filter check meters on both or them never went into the blue, meaning there wasn't a lot of humid air coming out of the filter.  The humidifiers were running much longer and were less efficient than when I use the name brand filter.  I ended up buying another set of the better filters and throwing these away.  I don't recommend.