1. Material:Be made up of high quality filter paper and durable plastic frame,keeping it working for a long time. Product size: 10 x 4.6 x 1.2 inch.*2. Evidently improves the air quality. It also helps deodorize any unfavorable household smell.*3. Compatible with Holmes Units: CAP531-U, CAP529-U, HAP240, HAP242, HAP412, HAP422, HAP424, HAP706, HAP716, HAP9240, HAP9242, HAP9412, HAP9414, HAP9422, HAP9424;Compatible with Bionaire Units: BAP260, BAP815, BAP825, BAP9200, BAP9700, BAP520.*4. For best results change every 4 months.*5. Package:you'll get 4pcs HEPA Filter for the air purifier .Spare filter allows your air purifier not to wait
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Item# : SPM13846538417
Model # : DB-K-212531