Product review (5 stars): The Perfect Filter for my Honeywell QuietCare Humidifier
This is a genuine Honeywell filter designed to be used with the 11 gallon Honeywell QuietCare Humidifier (Model HCM-6013i). It's just perfect.

The box reports that this filter is compatible with the following humidifiers:

Honeywell series HCM-6000

Holmes series HM3500 and HM3600

Claims On Box:

Removes Minerals and Pollutants from Water

Has Protec Microbial Treatment to help prevent the growth and migration of mold, fungus, algae and bacteria on filter.

Helps capture dirt, dust and pollen.

Reinforced for maximum efficiency and longer filter life.

Exclusive Dry Lift Handle.