These drawings show how much heat is required to generate one pound of steam. at 100 pounds per square inch pressure. Note the extra heat and higher temperature required to. make water boil at 100 pounds pressure than at atmospheric pressure.
An Oxygen Concentrator uses this idea with the basic principle of Pressure Swing Adsorption (PSA) to deliver 90-95% pure oxygen. 1  Series of filters: To filter out impurities present in air.  Air Compressor: To push room air into the machine and forward it to the molecular sieve beds.
Types of oxygen concentrators There are two types of oxygen concentrators: home and portable. As the name suggests, the home devices use the electricity supply available from the patient's home.