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.
Battery â 1 Year. Below is a side by side comparison chart of the top portable oxygen concentrators that users can carry or wear and offer higher dosages of oxygen. The models below represent the smallest, lightest portable oxygen concentrators available on the market that offer higher oxygen liter flow from 1 to over 4 liters per minute. Portable Oxygen Concentrator Comparison of the smallest portable oxygen machines weighing under 10 pounds. Portable Oxygen Concentrators.