Bradford Airomatic Roof Fan Features Overview: Installation Roof Extraction Rate 647 m3/hr Noise 53 dB(A) Motor Wattage 30w Ductable No The Bradford Airomatic is the first of Bradford range of ventilators developed using advanced CFD (Computational Fluid Dynamics) software, as used in the aerospace industry. This software has allowed Bradford to produce a ventilator with a higher flow rate and efficiency than other ventilators while reducing its overall noise level and physical size. The unique Bradford design speed controller allows the selection of three fixed speeds, allowing just the right amount of flow to be set to suit the severity of the conditions without increasing power consumption. It can be mounted to any rake between 3 and 35 degrees. 1. Low Speed: 291 m3/hr | 4 watts | 35.4 dB(A) 2. Medium Speed: 434 m3/hr | 12 watts | 45.1 dB(A) 3. High Speed: 647 m3/hr | 30 watts | 52.9 dB(A)
