Nispira HEPA Activated Carbon Replacement Filter Compatible with Blueair Blue Pure 211+ Air Purifier

• The Nispira HEPA Replacement Filter protects against both gaseous and pollutants. Nispira filter removes smoke, odors from pets, cooking smells and VOCs chemical. Give you a peace of mind for fresh air. Moreover, the advanced polypropylene filter effectively removes particle size as small as 0.3 microns. Using a 360-degree air intake and up to 4 times the filter surface area than competing replacement filters. The Nispira Replacement Particle filter typically maintains air quality for six months to a year, with the actual lifespan influenced by environmental factors and fan usage. 
• Dimension 20.3"L x 2.7"W x 11.6"Th. Suggest replacing the filter every 6 months the most to optimize the performance. Quality meets or exceeds the leading national brand's.

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