●GENUINE PUROAIR 240 REPLACEMENT FILTER: HEPA 14 filter for PuroAir 240 Purifier ●HEPA 14 MEDICAL-GRADE FILTRATION: Removes 99.99% of pollutants including dust, pet dander, odors, smoke, and other fine particulate matter down to 0.1 microns in size. Proven to be more powerful than a standard HEPA 13. ●BACKED BY SCIENCE: 3rd party lab tested and certified. CARB and ETL certifications. Scientifically proven to detect and filter out 99.99% of pollutants. ●MAX COVERAGE: Cleans rooms up to 1,115 sq ft in 67 minutes.