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儿童口罩认准GB/T 38880-2020《儿童口罩技术规范》标准,该标准将口罩分为防护型(F)和卫生型(W)两类,防护型颗粒物过滤效率≥95%、细菌过滤效率≥95%,卫生型细菌过滤效率≥90%、通气阻力≤30Pa

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