Parbrook G D, Davis P D
Anaesthesia. 1979 Jan;34(1):47-52. doi: 10.1111/j.1365-2044.1979.tb04866.x.
Five factors influencing pollution in the dental surgery are considered. Despite leakage from round the mask and from the mouth, scavenging can remove the majority of expired anaesthetic. The effectiveness of scavenging can usefully be monitored with a Wright respirometer. Spillage of anaesthetic vapour at induction and at the end of anaesthesia must be avoided. In addition to scavenging, pollution levels are minimised if a Boyle's type machine is used and excessive fresh gas flow avoided. Room ventilation, e.g. extract fans in windows, is vital in reducing pollution levels in the surgery. Room size and non-uniformity of ventilation must also be considered.
本文考虑了影响牙科手术室污染的五个因素。尽管面罩周围和口腔会有泄漏，但废气清除装置可以去除大部分呼出的麻醉气体。废气清除装置的有效性可以用赖特呼吸计进行有效监测。必须避免在诱导期和麻醉结束时麻醉蒸气的泄漏。除了废气清除装置外，如果使用博伊尔式麻醉机并避免过多的新鲜气体流量，污染水平会降至最低。室内通风，例如窗户上的排风扇，对于降低手术室内的污染水平至关重要。还必须考虑房间大小和通风的不均匀性。
