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本帖最后由 alex 于 2014-10-21 11:51 编辑
啥问题来着?
哦,喘不上气了就该换了吧。。。
博士看来是文科僧,不看说明书。。。
http://multimedia.3m.com/mws/med ... uZgVs6EVs6E666666--
Time Use Limitation
If filter becomes damaged, soiled,
or breathing becomes difficult, leave
the contaminated area and dispose
of the filter. If used in environments
containing only oil aerosols, dispose
of filter after 40 hours of use or
30 days, whichever is first.
上面也写了兼容6000,7500,7800系列哦。 |
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