Published at Saturday, August 25th 2018, 12:58:33 PM by Robyn Knowles. Air Compressor. Also, the portable air compressor is useful in hobbies like scuba diving. To make breathing underwater possible, an air compressor for scuba was made. This type of air compressor pump has made possible major breakthrough in the study of marine life. It has helped many adventurers explore the beauty of the sea.