title: Resistance to airflow in anaesthetic breathing systems.
abstract: We have examined, under reproducible conditions, the resistance to airflow of complete anaesthetic breathing systems (Magill, Coaxial Lack, Parallel Lack and Bain systems) and components of these systems. All systems had resistances within the recommended ranges at all flows likely to be experienced in normal clinical practice. The Magill system had the lowest resistance under all conditions. It is concluded that comparisons should be made only between complete breathing systems.
authors.affiliation: Department of Anaesthesia, Bristol Royal Infirmary.
authors.forename: D G
authors.initials: DG
authors.lastname: Martin
authors.forename: K L
authors.initials: KL
authors.lastname: Kong
authors.forename: G T
authors.initials: GT
authors.lastname: Lewis
mesh_terms: D000403:Airway Resistance; D000764:Anesthesia, Closed-Circuit / Q000295:instrumentation*; D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D004867:Equipment Design; D006801:Humans; D012212:Rheology; D012122:Ventilators, Mechanical / Q000592:standards