Product review (4 stars): great product
These filters are like the ones that I got with the humidifier.  As with the original ones they are very flimsy and don't last long if you run your humidifier all the time as I do in the winter. I will definitely make sure the next humidifier I buy doesn't need filters. I have another humidifier for upstairs that doesn't take filters and it works great. I. Don't have to worry about the filter drying out or being dirty.