A 14′′ portable ventilation fan is a mobile axial-flow unit with a ~14-inch (~350 mm) diameter blade designed to move large volumes of air for supply or exhaust in industrial or construction settings.
Specifications
-Diameter: ~14 inches (≈ 350 mm)
-Motor Power: ~750 W (for typical heavy-duty unit)
-Air Flow: ~4,900 m3/h (≈ 82 m3/min)
-Speed: ~2,800–3,150 rpm
-Voltage: ~220-240 V AC (in many units)
-Noise: ~69 dB(A) for one model.