Product review (1 stars): Not up to standard (fixed)
I am editing this review because lately Amazon has again supplied the good version of this product that contains the blue charcoal pre-filter.  You will know immediately the good from the bad by the presence of said pre-filter.

My previous statement read:

For whatever reason Amazon only sells this sub-standard filter now for the humidifier.  It is not up to the standards that I had come to expect.  For one it is completely lacking anti-bacterial treated carbon pre-filter, which means it gets musty and moldy quite rapidly.  You need to flip it almost every fill up and it doesn't last near as long as the good filter that Honeywell makes - and so it stinks and it doesn't do near as well of a job.

Very disappointing.