Features: 

1 positive displacement blower, no compression, air conveying is smooth, there is small flow rate changes along with pressure changes. 

2 tri-lobe linear-shaped impeller making inlet and outlet pulsation quiet with low noise and vibration. 

3 special impeller of mesh curve and small enclosure making roots blower high efficiency, low energy consumption. 

4 small size, light weight and elegant appearance. 

5 with high-precision synchronous hard-toothed surface gears ensure long life. 

6 much cleaner with no oil 

7 with nitrile rubber seal rings 

8 Swedn SKF brearings 

9 Germany OPTI belts