https://multimedia.3m.com/mws/media/985770O/tdb-ppe-for-ebola-virus-disease-evd.pdf
其實兩隻N95都夠擋
醫療級係for surgical use
即係真係入手術室先要
http://multimedia.3m.com/mws/media/601997O/respirator-comparisons-medical-health-care-vs-industrial-use.pdf?&cEVuQEcuZgVs6EVs6E666666--
If fluid resistance and use in surgery/operating room environment are not requirements for use in your facility, OSHA and the CDC allow any NIOSH N95 particulate respirator to be selected to help reduce exposure to airborne biological particles when used in the context of an effective respiratory protection program according to OSHA requirements.