Product review (5 stars): Great Quality! Will purchase again
These filters are of much better quality that the Honeywell ones (of the same size) that can be purchased off of Amazon. The thickness and sturdiness is closer to the original filter that came with the Honeywell humidifier. For reference, I have the Honeywell HCM350B. Mine did get a bit yellow at the top after a few days. Note: the humidfier doesn't have a timer or sensor that water has run out, so it was running with no water for a few hours.