Equivalent Filter: 325

Fits Bionaire Models: CM-2.5, CM-3, CM-3s, CM-4, CM-4s, CM-6, CMP-3, CMP-5, CP-305, CP-0210, CP-0310, CP-315, CP-0470

Replacement Electret Air Filter designed to remove dust, pollen, and smoke particles to maintain a clean unit and mist.

For best results, these air cleaner filters should be changed at least twice per season; more often depending on air quality and use.