Unverified80% confidenceFactTime unknown
尺寸随年龄段区分:脖套内径0-1岁约22-26cm、1-3岁约26-30cm、3-6岁约30-34cm;口罩以鼻梁到下巴的高度为准,过大遮挡视线或漏风、过小压迫呼吸
1
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80%
Confidence
Long-term
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