Humidity and Temperature Changes during Low Flow and Closed System Anaesthesia

J. A. Aldrete, P. Cubillos, D. Sherrill

Research output: Contribution to journalArticlepeer-review

36 Scopus citations


Water humidity and temperature were measured in the proximal end of the inspiratory limb in anaesthetic circuits used to anaesthetize three groups of adult patients using various fresh gas flows (FGF). Humidity increased as FGF's were lowered, with 98% water humidification achieved when FGF's of less than 0.5 1/min were administered. Temperature at the same site changed about 1–2.5d̀C in inverse proportion to the volume of FGF. This advantage of closed system and low flow anaesthesia is a further reason for their wide‐spread utilization.

Original languageEnglish (US)
Pages (from-to)312-314
Number of pages3
JournalActa Anaesthesiologica Scandinavica
Issue number4
StatePublished - Aug 1981
Externally publishedYes

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine


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