Unverified90% confidenceFactTime unknown
通过GB/T 38880-2020认证,呼吸阻力指标符合儿童标准,透气性优于普通成人医用口罩,夏季佩戴闷热感相对较低
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90%
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Long-term
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UnverifiedGB/T 38880明确规定儿童口罩通气阻力应≤45Pa(低于成人平顺呼吸标准),呼吸阻力大易导致儿童缺氧不适,购买时优先看是否标注通气阻力数值87% similarUnverified呼吸阻力(吸气/呼气阻力)越低佩戴越舒适,GB2626标准要求吸气阻力≤350Pa;心肺功能弱者、老人、儿童优先选低阻力款或医用防护款,避免因憋闷引发不适82% similarUnverified日常通勤/教室内选平面型(GB/T 38880 D级,即卫生/舒适型)透气性好;仅在雾霾天PM2.5>150或流行病高发期才需防护型(F级),长时间佩戴防护型会增加儿童呼吸负担79% similarUnverified防护等级越高透气阻力越大,儿童呼吸肌较弱,日常上学出行选卫生型(通气阻力≤30Pa)即可,仅在雾霾天或疾病高发期短时使用防护型77% similarUnverified呼吸阻力指标看吸气阻力值:≤49Pa为低阻舒适,49-70Pa为中等,日常通勤选≤70Pa;高过滤效率往往伴随高阻力,儿童、老人及呼吸功能弱者应优先选低阻款76% similar
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