Membrane Solutions MSA3 Smoke Remover Replacement Filter, Technology 3-in-1 HEPA Filter for MSA3S MSA3W Air Purifier, Pack of 6

Genuine Replacement Filter: Works with Membrane Solutions MSA3W / MSA3S air purifier. 3-Stage Filtration: Removes up to 99.97% of airborne particles as small as 0.3 microns. Special Smoke Remover Filter: Captures smoke particles including visible smoke and the microscopic particles that can pose health risks and contribute to poor indoor air quality. Recommended to replace filters every 6-8 months to maintain its peak performance. Remove the plastic packaging of the new filters before running the air purifier.