Blue Pure 511i Max HEPASilent smart air purifier quickly cleans 193 sqft in about 12.5min, 465 sqft in 30 minutes and upto 926 sqft in 1 hour on high. Independently evaluated for safety standards and third-party tested for performance as part of the AHAM Verifide Program for air cleaners, this air purifier has a Clean Air Delivery Rate (CADR) of 125 for fine smoke particles, dust and pollen. | Blueair | | Blue Pure 511i Max 926 sq ft HEPASilent Small Room Bedroom Air Purifier | White/Gray | Best Buy