McCoy, Margaret A. The Use and Effectiveness of Powered Air Purifying Respirators in Health Care : Workshop Summary. - 1st ed. - 1 online resource (81 pages) ISBN: 9780309315968 Subjects--Topical Terms: Breathing apparatus. Index Terms--Genre/Form: Electronic books. LC Class. No.: T55.3.G3 .U84 2015 Dewey Class. No.: 616.9