Letter Re: Welding Oxygen Versus Medical Oxygen
Jim, In one of the letters about acquiring oxygen, the following statement was made by a SurvivalBlog reader: “Aviation, medical and welder’s oxygen are all pure, dry and inexpensive. There is a deadly difference between oxygen made for use by a machine and oxygen made for use by people. Compressors, like any other machine, must be lubricated. Air compressors used in a dive shop [or a medical supply company] will use a natural oil, like peanut oil. Compressors used to inflate a car tire, or produce air and oxygen for welding and manufacturing processes, generally use a light machine oil. …