Powerful. Low Noise, Durable -Premium fully seal double roller 28 stacked copper motor, imported ball bearings. Efficient instant start, powerful, silent and smooth operation. -Prevent overheat and lifespan over 100,000 hours.ROBAM
Extra Large Impeller -Extra-large impeller design.
Advanced Alignment System -Through the high-precision digital balancing instrument of rigorous testing, the motor and impeller remained stable and avoid and friction between various components, even when speed reaches its peak.
Archimedes Spiral -Unique motor house design with comprehensive utilization on both Archimedes spiral and fluid mechanics, while reducing the noise level, improve the air pressure and air flow. *Noise level reduction rate 13.5%, *Air flow increase 21.1%, *Air pressure increase 17.8%