1 Pack 211+ Replacement Filter Compatible with Blueair Blue Pure 211+ Air Cleaner Purifier, H13 True Hepa Foldable Particle and Activated Carbon Replacement Filter

Core 300 Toxin Absorber Replacement Filter for LEVOIT Core 300 and Core 300S VortexAir Air Purifier, 3-in-1 H13 Grade True HEPA Replacement Filter, Core 300-RF-TX (Green),2 Pack