title: A high-humidity circle system for infants and children.
abstract: A scaled-down version of a modified adult circle system capable of increasing normal humidity output 300% was constructed for pediatric use. The moisture content of the gases leaving the system was tested and found to be superior to that of any pediatric circle system commercially available that does not incorporate an electrically heated water vaporizer.
mesh_terms: D000758:Anesthesia; D002648:Child; D002675:Child, Preschool; D006801:Humans; D006813:Humidity / Q000295:instrumentation*; D007223:Infant