Positive displacement compressors are widely used in flour, cement, water and sewage and packaging industries. These systems usually have the ability to produce pressure difference up to 1000 mbar and aeration volume up to 15000 cubic meters per hour. It is necessary to note that the air output from the above compressors does not contain oil.

Compressors operate at a high-pressure ratio, and blowers at a low-pressure ratio. Air compressors cram air into a small space which makes the air denser. Air blowers move air/gas with a moderate increase of pressure.
Effectively, a blower is designed to move air and gas at low to high pressure to perform a specific function. Blowers serve a broad spectrum of applications in a variety of industries, including: cooling, conveying, ventilating, exhausting, etc.