title: Use of filters on medical gas system outlets and vacuum system inlets.
mesh_terms: D004866:Equipment Contamination / Q000517:prevention & control*; D004867:Equipment Design; D004869:Equipment Safety / Q000592:standards*; D005374:Filtration / Q000295:instrumentation*; D006749:Hospital Design and Construction / Q000592:standards; D012906:Smoke / Q000517:prevention & control; D014618:Vacuum
chemical_list: D012906:Smoke