title: Comparison of stainless-steel closures and cotton plugs in maintaining contamination-free medium in circulating air.
abstract: Culture flasks capped with stainless-steel closures became contaminated when incubated in circulating air. Cotton plugs prevented this contamination.
mesh_terms: D000391:Air Microbiology; D000497:Alloys; D001431:Bacteriological Techniques / Q000295:instrumentation*; D003470:Culture Media; D003368:Gossypium
chemical_list: D000497:Alloys; D003470:Culture Media