Humidifier Wick Filter WF2530 Bionaire (Aftermarket) Fits Bionaire models WH2510, WH2530, WH3060, WS3510, WS3560, and WS3570. Bionaire humidifier wick filters. Measures approximately 7" x 7 3/8" x 2 1/2". Honeycomb filtration to trap mineral pollutants found in water and help prevent them from entering your home. This is an aftermarket filter.