good sealing GB 2626 2006 face mask in Italy

good sealing GB 2626 2006 face mask in Italy

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good sealing GB 2626 2006 face mask in Italy Description

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    The nano fiber PM0.3 mask has a good way to avoid the second pollution problem of traditional micron fibre filter. Dakang air nanofiber pm0.3 mask test report. Standard GB/T6165 2008, GB/T13554 2008, GB 2626 2006. Dakang air nanofiber pm0.3 mask material composition

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    specifications face mask for GB 2626 2006,N95 mask

    [GB 2626 2006, definition 3.17] 3.12 Dead space It refers to the volume of the re inhaled gas from the previous exhalation, eed by the volume fraction of carbon dioxide in the inhaled gas. 3.13 Face mask belt It refers to the belt used to fix the mask to the head and face

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