Unverified90% confidenceDecision RuleTime unknown
硬度选择：合格防窒息枕应满足手掌按压后1-2秒内快速回弹、且面部压入不留深坑；过软的记忆棉/慢回弹材质绝对禁用于婴儿，会形成口鼻凹陷导致CO2重复吸入
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