Filter material and respirator mask
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United States of America Patent
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Issued Date -
Feb 17, 2011
app pub date -
Jun 17, 2010
filing date -
Aug 14, 2009
priority date (Note) -
Abandoned
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Abstract
The present invention relates to a filter material for respirator masks. The filter material comprises a filter material layer that is pleated so as to form a plurality of folds, said filter material layer comprising a filter layer and a first netting layer. The invention is characterized in that the filter material layer comprises a second netting layer disposed on the filter layer on the side opposite to said first netting layer. The invention additionally relates to a respirator mask comprising such a filter material.
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