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. 2022 Jun 20;167:107364. doi: 10.1016/j.envint.2022.107364

Table 1.

Specification summary of the textiles analyzed regarding fiber and particle release.

Identifier Description Supplier Layers Structure and details Surface density (g/m2) ± SD Laser cutter power (%)
SM A Surgical mask A Tengchuang Yiliao 3 Melt-blown PP mask, CE and FDA label, no mask std., middle efficiency 75.5 ± 1.7 45
SM B Surgical mask B Welan 3 Melt-blown PP mask, CE, TypIIR (EN14683), BFE > 98%, high efficiency 83.6 ± 0.9 45
RCT Reference cotton textile Swissatest, Ref 210 1 Cotton textile 180 g m2 plain, bleached w/o optical brightener 176 ± 1.3 55
uncoated Pro Mask textile uncoated Livinguard 3 (inner- / outer layer uncoated) Sample, inner- / outer layer cotton textile with middle layer melt-blown PP textile 282 ± 1.8 70
coated Pro Mask textile coated Livinguard 3 (inner- / outer layer antiviral coated) Sample, inner- / outer layer cotton textile with middle layer melt-blown PP textile 288 ± 2.4 70
filter Pro Mask filter textile Livinguard 1 (middle layer uncoated) Melt-blown PP textile 31.0 ± 1.0 50

Polypropylene (PP), Bacterial Filtration Efficiency (BFE).