Nispira Collapsible True HEPA Particle Activated Charcoal Filter Replacement Compatible with Blueair Blue Pure 121 Large Air Purifier 620 SQ.FT | Remove Smoke VOCs nispira Upgraded Multi-Layer Design: Features enhanced

Upgraded Multi-Layer Design: Features enhanced filtration layers with increased carbon density for longer-lasting performance and consistently clean water

Suggested to replace every 12 months for optimal performance

360° Airflow Design – Round cylinder structure provides smooth airflow and maximizes purification efficiency

Premium HEPA filter replacement with activated carbon for XJ-3800 Air Purifier

Nispira Collapsible True HEPA Particle Activated Charcoal Filter Replacement Compatible with Blueair Blue Pure 121 Large Air Purifier 620 SQ.FT | Remove Smoke VOCs nispira Upgraded Multi-Layer Design: Features enhancedNispira premium filter set compatible with Blueair Blue Pure 121 Large Air Purifier for 620 SQ. FT High quality HEPA filter captures 99. 97% of airborne particles size down to 0. 3 microns. Activated charcoal filter helps deodorize any unfavorable household smell and removes chemical VOCs Flat dimension: 19. 37" x 20. 25"x 3". Expanded dimension: 11. 6" x 11. 6" x 19. 37". Suggested to replace every 6 months for best performance. 100% customer