Acoustic Attenuation of COVID-19 Face Masks: Correlation to Fibrous Material Porosity, Mask Breathability and Bacterial Filtration Efficiency

被引：2

作者：

Martarelli, Milena ^{[1
]}

Montalto, Luigi ^{[1
,2
]}

Chiariotti, Paolo ^{[3
]}

Simoni, Serena ^{[2
,4
]}

Castellini, Paolo ^{[1
,2
]}

Battista, Gianmarco ^{[1
]}

Paone, Nicola ^{[1
,2
]}

机构：

[1] Univ Politecn Marche, Dipartimento Ingn Ind & Sci Matemat, Via Brecce Bianche, I-60131 Ancona, Italy

[2] Univ Politecn Marche, LABC19 Ctr Ric & Serv Emergenza COVID 19, I-60131 Ancona, Italy

[3] Politecn Milan, Dipartimento Ingn Meccan, Via La Masa 1, I-20156 Milan, Italy

[4] Univ Politecn Marche, Dipartimento Sci Vita & Ambiente, Via Brecce Manche, I-60131 Ancona, Italy

来源：

ACOUSTICS | 2022年 / 4卷 / 01期

关键词：

acoustic attenuation; face mask; surgical mask; respirators; community mask; COVID-19; breathability; bacterial filtration efficiency; porosity of fibrous material;

D O I：

10.3390/acoustics4010009

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper presents an experimental study on acoustic attenuation of different types of face masks in use by the general population during the COVID-19 pandemic. In particular, measurements are performed on ten samples of masks, of which four are medical masks, three are respirators, and three are community masks. Breathability and Bacterial Filtration Efficiency (BFE) tests, in compliance to the standard characterization process of medical masks, are also carried out. The porosity on each layer composing the masks is measured by processing their scanning electron microscopy (SEM) images. The analysis of the results aims to establish if acoustic attenuation is correlated to any of these parameters. It emerges that porosity and breathability are strongly correlated to acoustic attenuation, while bacterial filtration efficiency is not.

引用

页码：123 / 138

页数：16

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