Speech intelligibility assessment of protective facemasks and air-purifying respirators.
Speech intelligibility assessment of protective facemasks and air-purifying respirators.
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DOI：
10.1080/15459624.2016.1200723
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发表时间：
2016-12
影响因子：
2
通讯作者：
Shaffer RE
中科院分区：
文献类型：
--
作者：
Palmiero AJ;Symons D;Morgan JW 3rd;Shaffer RE
语音清晰度(SI)是声音传输的感知质量。在医疗保健环境中，与同事、患者等进行清晰沟通的能力对于高质量的患者护理和安全至关重要。本研究的目的是1)评估语音传输指数(STI)方法在测试医护人员常用的可重复使用和一次性的面部和呼吸个人防护设备(防护面罩[PF]、N95过滤面罩口罩[N95 FFR]和弹性半面罩空气净化口罩[EAPR])中的适用性；2)量化这些设备的STI水平；以及3)为SI领域的科学知识体系做出贡献。在两种实验条件下使用STI对SI进行评估：1)在信噪比为−15(66dBA)的情况下，使用美国国家消防协会1981年补充语音通信系统性能测试的修订版；以及2)使用以5.0dBA为增量的修改的粉色噪声水平(52.5dBA(−2SNR)−72.5dBA(+7SNR))的STI测量。PF模型(金佰利49214和3M1818)对SI干扰的影响最小，通常分别偏离STI基线(无屏蔽条件)3%和4%STI。N95FFR(3M 1870和3M 1860)对SI干扰的影响更大，在被测试的模型中，通常与基线的差异分别为13%和17%。EAPR模型(Scott Xcel和North 5500)对SI的影响最显著，测试模型与基准相差42%。这些数据提供了有关STI方面这些设备的性能的洞察，并可作为未来呼吸器设计考虑、标准制定、测试和认证活动的参考点。
Speech Intelligibility (SI) is the perceived quality of sound transmission. In healthcare settings, the ability to communicate clearly with coworkers, patients, etc. is crucial to quality patient care and safety. The objectives of this study were to 1) assess the suitability of the Speech Transmission Index (STI) methods for testing reusable and disposable facial and respiratory personal protective equipment (protective facemasks [PF], N95 filtering facepiece respirators [N95 FFR], and elastomeric half-mask air-purifying respirators [EAPR]) commonly worn by healthcare workers, 2) quantify STI levels of these devices, and 3) contribute to the scientific body of knowledge in the area of SI. SI was assessed using the STI under two experimental conditions: 1) a modified version of the National Fire Protection Association 1981 Supplementary Voice Communications System Performance Test at a Signal to Noise Ratio (SNR) of −15 (66 dBA) and 2) STI measurements utilizing a range of modified pink noise levels (52.5 dBA (−2 SNR) − 72.5 dBA (+7 SNR)) in 5.0 dBA increments. The PF models (Kimberly Clark 49214 and 3M 1818) had the least effect on SI interference, typically deviating from the STI baseline (no-mask condition) by 3% and 4% STI, respectively. The N95FFR (3M 1870, 3M 1860) had more effect on SI interference, typically differing from baseline by 13% and 17%, respectively for models tested. The EAPR models (Scott Xcel and North 5500) had the most significant impact on SI, differing from baseline by 42% for models tested. This data offers insight into the performance of these apparatus with respect to STI and may serve as a reference point for future respirator design considerations, standards development, testing and certification activities.
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影响因子：
2.4
作者：
Busch-Vishniac, IJ;West, JE;Chivukula, R
通讯作者：
Chivukula, R
影响因子：
14.6
作者：
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影响因子：
2.3
作者：
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Coon, S
影响因子：
3.2
作者：
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通讯作者：
SHAHNAVAZ, H
影响因子：
5.6
作者：
Aaron, JN;Carlisle, CC;Millman, RP
通讯作者：
Millman, RP