CE approvalSpecial 4 ply plated design, high
filtration and static electricity material, and high efficient active
carbon material to absorb.Silicon valve equipped to resist the dust.Suitable
to paper industrial, shipbuilding, paper industrial, agriculture,
chemical engineering power generating, electronic, coating, metal
annealing and hot/heavy labor environments etc.To resist acid and
vapor, such as H2S, SO2, H2, N2 and micro dusk.
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