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首页> 外文期刊>Indian Journal of Critical Care Medicine >Fit Factor Change on Quantitative Fit Testing of Duckbill N95 Respirators with the Use of Safety Goggles
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Fit Factor Change on Quantitative Fit Testing of Duckbill N95 Respirators with the Use of Safety Goggles

机译：使用安全护目镜的鸭嘴N95呼吸器定量拟合测试的适应因素变化

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摘要

N95 respirators and safety goggles are important components of personal protective equipment to reduce the spread of airborne infections, such as COVID-19, among healthcare workers. Poor N95 respirator seal may reduce its protective effect, thereby increasing transmission. Quantitative fit testing is an established way of assessing the N95 respirator fit, which provides a quantitative measure for seal, called the fit factor. Duckbill N95 respirators frequently fail the fit test. We hypothesized that using safety goggles with a wraparound elastic headband will increase their fit-factor by reinforcing the seal between the face and the upper margin of the respirator. We studied the effect of safety goggles with a wraparound elastic headband (3M? Chemical Splash Resistant Goggles, ID 70006982741) on the fit factor of two types of Duckbill N95 respirators (Halyard FLUIDSHIELD*3, Model 99SA070M, and ProShield? N95 Model TN01-11) in 63 healthy volunteers in a nonrandomized, before-and-after intervention study design. The mean fit factor increased from 69.4 to 169.1 increased from 17/63 (27%) to 46/63 (73%) after the intervention (p 0.0001, OR 3 [95% CI = 4.9–1223]). This is the first study to explore the impact of safety goggles on N95 respirator fit. We conclude that the use of safety goggles with a wraparound elastic headband increases the fit factor of the tested Duckbill N95 respirators.
机译：N95呼吸器和安全护目镜是个人防护设备的重要组成部分，以减少医疗工作者中的空气传播感染的传播，如Covid-19。较差的N95呼吸器密封可以降低其保护效果，从而增加传输。定量配合测试是评估N95呼吸器配合的建立方法，该载体为密封提供定量措施，称为拟合因子。 Duckbill N95呼吸器经常失效拟合测试。我们假设使用带有环绕弹性头带的安全护目镜将通过加强面部和呼吸器的上部边缘之间的密封来增加它们的适合性因子。我们研究了安全护目镜与环绕弹性头带（3M？化学飞溅抗性护目镜，ID 70006982741）对两种类型的鸭嘴N95呼吸器（Halyard SpectsShield * 3，Model 99SA070M和ProSpield？N95 Model TN01- 11）在63个健康的志愿者在非沉积的，前后的干预研究设计中。在干预后的17/63（27％）至46/63（73％）中，平均拟合因子从69.4增加到169.1增加（P <0.0001，或3 [95％CI = 4.9-1223]）。这是第一次探索安全护目镜对N95呼吸器合适的影响的研究。我们得出结论，使用带有环绕弹性头带的安全护目镜增加了测试的鸭嘴N95呼吸器的拟合因子。

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