Patent ID: 11871802
Assignee: INTEGRATED PHARMA SERVICES, LLC
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 1:
2. A filter insert of a respirator or facial mask, wherein said filter insert comprises a pleated filter or filter layer comprising more than two pleats, an external pleating spacer, an internal pleating spacer, and a filter support, wherein:
(A) said pleats are substantially completely folded, wearer-repositionable, pleats that are substantially planar with the filter or filter layer; and
(B) said external pleating spacer and said internal pleating spacer each comprises an array of fold separators that extends outwardly from a spacer support backbone, wherein each of said fold separators is adapted to permit its insertion into a pleat of said pleated filter or filter layer; and
wherein:
two or more of said pleats are disposed between, or are adapted to be disposed between, either an inserting fold separator of said external pleating spacer or an inserting fold separator of said internal pleating spacer, such that each of said pleats is stabilized by said insertion;
(ii) said external pleating spacer and said internal pleating spacer are each removeable and repositionable from said respirator or facial mask;
(iii) said pleated filter or filter layer is affixed to said filter support, which is adapted to mate to a receiving opening of said respirator or facial mask;
wherein said pleating spacers increase airflow through said respirator or facial mask, when affixed with said filter insert, in normal use and at normal pressure.