Bought this at auction but I've already got my own. 

  • MAXIMUM COVERAGE: Cleans up to 4,455 sq ft in one hr, 2,090 sq ft in 30 min, 1,050 sq ft in 15 min. [*Based on average CADR for pollen, smoke, and dust when operating at fan setting 3. Assumes closed room with 8 ft ceiling.] Perfect for extra large rooms.Voltage: 120V AC 60Hz. Noise level: < 69 dB(A).
  • QUALITY TESTED & BACKED: CARB, ETL, and Energy Star certified. The replacement filter (B07MTQKJ14) lasts 3,000 hours or about 6 months.