Product review (1 stars): STINKS
As others have noted, this is not the filter that is pictured. The filter that is pictured is the kind of filter I received with my humidifier. However, Honeywell at some point redesigned the filters and the new ones are AWFUL.  I used this one and after a few days it started putting out the most awful smell that I'd liken to moth balls. I thought perhaps it was a dud so I ordered a new one - this time directly from Honeywell. However, the exact same thing happened to the second one. Completely untenable to purchase a new filter every 4 days. This change in the filters has rendered my humidifier completely useless and I'm a very unhappy customer.