作者Atima (芝村厚志生还确定)
看板NTUmed89
标题口罩的分类
时间Wed Apr 30 17:21:57 2003
http://www.cdc.gov/niosh/tb.html#toc
N95的定义
NIOSH以直径0.3微米的NaCl结晶颗粒测试
当口罩可以过滤95%的NaCl...称为N95
0.3微米是Mycobecteria tuberculosis过滤孔径....
已经看过无数人乱讲N95的定义了...
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