Thermally protected. UL recognized. CSA or ULc certified. Centrifugal blower with sleeve bearing. CFM at Static Pressure as follows: 230 at 0.1", 212 at 0.2", 191 at 0.3", 175 at 0.4", 130 at 0.5" and 27 at 0.6". 60Hz Frequency. 1650rpm at free air. 115 Volt. 1 Speed. 1.86 amps at free air. Nameplate CFM: 265.