Product review (4 stars): Filters! Oh boy.
These humidifier filters are not as nice as the ones that are more expensive, but I am still not sure how to judge them against one another. These don't have the reinforcing metal throughout, but there is no physical strain put on teh filter that would require such reinforcement. . . I am really at a loss.

I bought a four-pack to save money, and I still feel gouged for such a simple and seemingly low-tech item. If you like humidifiers, and you want a clean filter, buy a bunch of these and be prepared to change them constantly because they just sit in a small pool of water day in and day out. They will mold and mildew, you will be disgusted and cry and then you will pay for new filters and they will be jhust as moldy and cruddy as the last each time you look in the humidifier.

Oh well, four stars because they do what they say they do and lst as long as I expected. Not five stars because they seem expensive and of lower quality than the filters I am replacing. I am sure someone will have something disapproving to say about htis review, but somebody always has some negative to spread around. . . so what's new.