Sharp Plasmacluster Ion Air Purifier with True HEPA + Humidifier for Large Rooms(P)(B)AIR PURIFICATION FROM A BRAND YOU TRUST( B) ( P) (P)You know the importance of indoor air quality. You should have an air purifier from a brand you trust.( P) (P)The Plasmacluster 7000 Series KC860U Air Purifier with Humidifier by SHARP is your choice for large rooms. Effective up to 1,650 sq. ft. at one air change per hour, the KC860U will filter the air in the AHAM Suggested Room Size of 341 sq. ft. at 4. 8 air changes per hour.( P) (P)Raise