This industrial wall fan is a good partner for the long, hot days. You can put it in workplace, factories, garage, or at home. It has big air volume: Blade is streamline design with sustained strong air. Higher safety: Overheating protection and high density grill design to ensure safety and reliability. Long service life: Low temperature rising and stable performance to ensure long service life. Low noise: Ball bearing and noiseless gearbox design to avoid noise. Energy saving: Low energy consumption for electrical motor, big air volume, high efficiency, environmental friendly.