Kim Jung-Hyun, Roberge Raymond J, Powell Jeffrey B
Technology Research Branch of the National Personal Protective Technology Laboratory, National Institute for Occupational Safety and Health, Centers for Disease Control and Prevention, 636 Cochrans Mill Road, Pittsburgh, PA, 15236, USA.
J Clin Monit Comput. 2015 Dec;29(6):691-5. doi: 10.1007/s10877-014-9651-x. Epub 2014 Dec 20.
To determine the impact of wearing an N95 filtering facepiece respirator (N95 FFR) on tympanic temperature measurements. TMT measurements, with and without wearing an N95 filtering facepiece respirator (N95 FFR) were obtained at the onset and termination of 1 h of treadmill exercise in 21 subjects, and at staggered time intervals (0, 20, 40, 60 min) during combined sedentary activity and exercise of another 46 subjects, to determine any effect on TMT. A total of 877 TMT measurements were obtained that demonstrated a mean TMT increase of 0.05 °C in the first study group (p = 0.04) and a 0.19 °C decrease in the second study group (p < 0.001) with the wearing of an N95 FFR, both of which were lower than controls. Wearing an N95 FFR for 1 h, at different levels of activity, results in significantly lower TMT values than not wearing an N95 FFR, but the magnitude of the changes would likely have minimal clinical significance.
确定佩戴N95过滤式面罩呼吸器（N95 FFR）对鼓膜温度测量的影响。在21名受试者进行1小时跑步机运动的开始和结束时，以及在另外46名受试者进行久坐活动和运动的组合过程中的交错时间间隔（0、20、40、60分钟），分别获取佩戴和不佩戴N95过滤式面罩呼吸器（N95 FFR）时的鼓膜温度（TMT）测量值，以确定对TMT的任何影响。总共获得了877次TMT测量值，结果显示，在第一个研究组中，佩戴N95 FFR时TMT平均升高0.05°C（p = 0.04），在第二个研究组中降低0.19°C（p < 0.001），两者均低于对照组。在不同活动水平下佩戴N95 FFR 1小时，导致TMT值显著低于不佩戴N95 FFR时，但变化幅度可能具有极小的临床意义。
