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01.12.2015 | Original Research | Ausgabe 6/2015

Journal of Clinical Monitoring and Computing 6/2015

Effect of wearing an N95 respirator on infrared tympanic membrane temperature measurements

Journal of Clinical Monitoring and Computing > Ausgabe 6/2015
Jung-Hyun Kim, Raymond J. Roberge, Jeffrey B. Powell
Wichtige Hinweise
The authors declare that the experiments comply with the current laws of the United States of America.
Disclaimer: The findings and conclusions in this report are those of the author(s) and do not necessarily represent the views of the National Institute for Occupational Safety and Health. Mention of product names does not imply endorsement.


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.

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