Product review (5 stars): Great replacement filter
This filter is used in my Honeywell humidifier and I have been satisfied with its performance. I do not believe this filter has changed thickness, as other reviewers have stated. I have not noticed a decrease in thickness of paper used in the filter. I do like the blue webbing over the paper that acts as an air "cleaner" removing the dust that gets sucked into the humidifier. I change my filters every 3 months (or once during the humidifier season).