This is a new edition of the practical and comprehensive guide to the working principles of modern day anaesthetic equipment. This edition has been completely revised and updated to ensure that the physical principles and clinical applications of equipment are closely integrated throughout. A complete revision of all photographs and line figures has been completely revised and updated to ensure that the physical principles and clinical applications of equipment are closely integrated throughout. A complete revision of all photographs and line figures has been undertaken, as well as the introduction of a new text design which allows quick and easy access to key information.