WhisperComfort Spot ERV Ceiling Insert Ventilator with Balanced Ventilation and Patent-Pending Capillary Core: * Balanced ventilation * Spot ERV * Whole house ERV * ASHRAE 62.2 2007 Standard * Power consumption (watts): 23 at 40 CFM, 21 at 20 CFM and 17 at 10 CFM * Speed (RPM): 1479 at 40 CFM, 1292 at 20 CFM and 1095 at 10 CFM * Current (amps): 0.15 at 40 CFM, 0.10 at 20 CFM and 0.09 at 10 CFM * Weight: 24 lbs * Designed to maintain indoor air quality * Ceiling insert ERV * Replace exhausted and stall indoor air with fresh quality air * ENERGY STAR qualified * Prevents greenhouse gas emissions