The Bionaire CB11 fits the following humidifiers:
The Bionaire 911D Humidifier Filter Replacement - CB11 is a micro-wick Humidifier Filter designed to trap minute air pollutants. The Bionaire replacement filters help keep your Humidifier working at peak performance.
The Bionaire CB11 specifications:
This Bionaire humidifier filter has a special two-stage design which provides a micro-weave filter that traps minute air pollutants. This prevents these air particles from getting into your Bionaire humidifier.This CB11 filter will ensure that your Bionaire Humidifier releases only clean, fresh, humidified air into your home.