Air Compressor

Compressed air is mainly used to operate machinery, processes or equipment. Compressed air is air, which has been put under greater pressure than the air in the general environment. It is one of the most expensive of all services to be provided, but on the contrary is regarded as free and often ignored when it comes to conservation.  Significant energy and eventually cost can be saved by efficient and sensible generation & utilization of compressed air.

For energy saving tips

https://www.eec-fncci.org/page/compressed-air