Most of us take pure breathing air for granted, but for workers in various industries, it’s a matter of life or death. Firefighters need to know that their self-contained breathing apparatus (SCBA) cylinders are safe and ready for an emergency. Navy diving teams must confirm safe breathing air for each batch of underwater cylinders that are filled. Pharmaceutical manufacturers require high purity air when packaging medication. Airlines must test their medium pressure compressors. Various other … [Read more...]