Nispira 1 Set 182550 Filter Replacement Compatible with Bionaire BAP536UV-U Holmes HAP537UV / 2141139 Air Purifier, 1 HEPA 4 Pre filters

Premium HEPA air replacement filter compatible with Bionaire BAP536UV-U and Holmes HAP537UV/2141139 Air Purifier. | It replaces original Bionaire Part 182550. | Preliminary filter helps extend HEPA filter life span by preventing hair, dust and debris from entering the machine. HEPA filter removes up to 99.97 % of airborne particles size as small as 0.3 microns. Activated Carbon inside captures household unfavorable Odors & harmful VOCs. | 1 Set Filter included. Dimension: 20.5''x 1.3''x 4.8''. | 100% customer satisfaction guaranteed. Quality meets or exceeds leading national brand.