Below are some powerpoint presentations on Anesthesia machines which i found on the Internet. i hope they will be useful for the PG students.
An exhaustive Presentation on Anesthesia Machine and Equipments
Another wonderful presentation for students
Download PDF Articles on Anesthesia Machine from IJA
there is a download link for a zip file which contains PDFS of articles about Anaesthesia machines, their safety features and more. these are the articles from Indian journal of Anaesthesiology and can be accessed at IJA Website also.