Respirator filter element
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United States of America Patent
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N/A
Issued Date -
May 15, 2003
app pub date -
Oct 31, 2001
filing date -
Oct 31, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A filtration element of a respirator or breathing mask including rear and front walls and a pleated separating layer that is not coextensive with the walls. The pleated separating layer maintains the front and rear walls in a spaced-apart relationship resulting in high filtration performance and reduced breathing resistance.
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