Thermally protected. UL recognized. CSA or ULc certified. Centrifugal blower with sleeve bearing. CFM at Static Pressure as follows: 66 at 0.1", 62 at 0.2", 53 at 0.3", 52 at 0.4", 47 at 0.5", 42 at 0.6" and 23 at 0.7". 60Hz Frequency. 2800rpm at free air. 115 Volt. 1 Speed. 0.95 amps at free air. Nameplate CFM: 75.