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. 2023 Jan 2;387:135854. doi: 10.1016/j.jclepro.2023.135854

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Fig. 9 — Sensitivity analysis of parameters affecting the carbon footprint of four masks. (P1: cotton fabric in raw material processing; P2: aluminum strip in raw material processing; P3: polyester/nylon blends in raw material processing; P4: water in mask production; P5: detergent in mask use).