1.Optimization of air duct-reducing wind resistance and noise
2.Tight Engagement of Components-Reducing Vibration Noise
3.GEDE BAO Noise Reduction Composite Cotton–Reducing Rotor Vibration Sound
4.Optimization of exhaust pipe-reducing exhaust howling
5.Dynamic balance noise reduction-reducing rotor vibration sound
6.Optimal noise reduction of impeller-reducing air resistance and noise
7.Motor suspension design-reducing resonance noise
8.Motor equipped with brushless motor-reducing rotor friction noise