Dry spell medical dryers deliver a dewpoint of 2 degree C as mandated by Medical Air Dryer. The dry spell medical dryers operate on the principle of pressure swing absorption, hence removes more moisture than a refrigeration dryer and it delivers moisture free dry air consistently irrespective of flow variation. Based on medical application critically the package comes with one working and one standby dryers. So there is no need to stop the air dryers for maintenance. Optional purge air up to 60% for a typical hospital load of 30% to 40 %.