Draping particulate filter for the nostrils and mouth and method of manufacture thereof

摘要

Draping particulate filters for use with at least the nostrils is disclosed. The draping particulate filters include diaphanous PM filter material, a biocompatible skin contact adhesive located on at least a skin contact side of part of the diaphanous PM filter material, and at least one line of perforations. Methods of making draping particulate filters are also disclosed.

主权项

1. A draping particulate filter, for use in front of at least a user's nostrils, comprising:
diaphanous PM filter material; at least one affixation region, associated with a top portion of the diaphanous PM filter material; a biocompatible skin contact adhesive at least located within the at least one affixation region on a skin contact side of the draping particulate filter; and at least one line of perforations spanning from a first side of the diaphanous PM filter material to a second side of the diaphanous PM filter material, the at least one line of perforations being located between a first portion and a second portion, the first portion defining a nasal filtration region and the second portion defining a mouth filtration region; wherein the at least one line of perforations will allow for separation of the second portion from the first portion such that, following separation, only the first portion that defines the nasal filtration region will be part of the draping particulate filter, wherein the draping particulate filter has an outer peripheral shape bounding the diaphanous PM filter material such that, when adhered to either side of the user's nose via the biocompatible skin contact adhesive within the at least one affixation region, the diaphanous PM filter material below the at least one affixation region will hang free in front of the user's face and will substantially lie in close proximity to a portion of the user's face so that, upon inhalation by the user through their nostrils, the first portion of the hanging diaphanous PM filter material will be drawn towards the nostrils and act as the nasal filtration region and, upon inhalation by the user through their mouth, if the second portion has not been separated from the first portion using the at least one line of perforations, the second portion of the hanging diaphanous PM filter material will be drawn towards the mouth and act as the mouth filtration region, and wherein upon exhalation by the user through their nose, the nasal filtration region of the diaphanous PM filter material will move freely away from the user's nostrils, and, if the second portion has not been separated from the first portion using the at least one line of perforations, upon exhalation by the user through their mouth, the second portion of the hanging diaphanous PM filter material will move freely away from the user's mouth.