RT Journal Article SR Electronic T1 The Respirgard II 303 breathing circuit filter is NOT an “absolute filter” JF Respiratory Care FD American Association for Respiratory Care SP 1710 OP 1711 DO 10.4187/respcare.05234 VO 61 IS 12 A1 Robert R Demers A1 Carmen Burciaga A1 Mark Sousa YR 2016 UL http://rc.rcjournal.com/content/61/12/1710.abstract AB