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China Coronavirus safety goggle catalog of Not Medical Face Mask Kn95 Public Masks Earhook Type, Aumacom Surgical Mask 3 Ply Filter Bfe 95% provided by China manufacturer Wenzhou Kingsun Optical , page1.

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Removal efficiency of vapour/particulate phase PAHs by

Jun 15, 2012 In the present study, most workers near the furnace and pouring areas wore a cotton fabric face mask, N95 and active carbon face mask, in addition to the restricted removal efficiency of particulates PAHs for these face masks, the major problem for each face mask might be how to remove vapour phase PAHs because the large proportion of vapour

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Removal efficiency of vapour/particulate phase PAHs by

Jun 15, 2012 In the present study, most workers near the furnace and pouring areas wore a cotton fabric face mask, N95 and active carbon face mask, in addition to the restricted removal efficiency of particulates PAHs for these face masks, the major problem for each face mask might be how to remove vapour phase PAHs because the large proportion of vapour

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Physiologic and other effects and compliance with long

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Airflow resistance and bio filtering performance of carbon

Airflow resistance and bio filtering performance of carbon nanotube Filters and current facepiece Respirators Article in Journal of Aerosol Science 79 · October 2014 with 174 Reads