Schweizer R T
Lancet. 1976 Nov 20;2(7995):1129-30. doi: 10.1016/s0140-6736(76)91101-6.
Some operating-theatre staff have a habit of wiggling their surgical masks by moving their facial muscles. The field contamination which can result from this practice was studied. A firmly fitting, moulded, synthetic-fibre mask produced significant bacterial contamination of culture plates held beneath the mask, compared with that found on simultaneously exposed control plates placed nearby. Softer fibreglass masks produced less contamination when moved by facial muscles, and are more suitable for mask wigglers.
一些手术室工作人员有通过面部肌肉运动来摆动手术口罩的习惯。对这种做法可能导致的手术区域污染进行了研究。与同时放置在附近的对照暴露培养皿相比，一种贴合紧密、模制的合成纤维口罩在其下方的培养皿上产生了显著的细菌污染。当用面部肌肉移动时，较柔软的玻璃纤维口罩产生的污染较少，更适合那些有摆动口罩习惯的人。
