... .high efficiency 3.long life blower 4.make the output water clean without any oil-dust and ordor 1. Low noise, due ... the product quality more liable.7. The transported air is clean and without any oil-dust, as the blower sealing structure ... . Widely used in many fields, especially in gas transportation, waste water treatment, aquaculture, pneumatic transport, vacuum packing, oxygen generation, etc. 14 ...