3m Innovative Properties Company

John M Facer

Christopher P Henderson

Audra A Wilson

Desmond T Curran

Reyad A Abdulqader

Nicholas J Gloag

Peter S Leonard

Ciaran G McMenamin

Ciaran G Mcmenamin

A maintenance-free respiratorthat includes a mask harness and a mask body. The mask bodyhas at least one layer of filter mediaand has a perimeterthat includes an upper segment. The upper segmentincludes first and second concave segmentsthat are located, respectively, on first and second sides of a central plane, when viewing the mask body from a top view. A maintenance-free respiratorof this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

Maintenance-free respirator that has concave portions on opposing sides of mask top section

A respirator that includes a harness and a mask body that is air permeable. The mask body has a sinus region and a primary filtering region and comprises at least one nonwoven fibrous webs The sinus region of the mask body exhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Anti-fog respirator

A personal respiratory protection device comprising an upper panel, a central panel, and a lower panel, the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab being graspable in use to open the device.

Respirator tab

A respirator that includes a harness and a mask body that is air permeable. The mask body has a sinus region and a primary filtering region and at least one nonwoven fibrous web. The sinus region of the mask body exhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus region without adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

A personal respiratory protection device () comprising an upper panel (), a central panel (), and a lower panel (), the central panel being separated from each of the upper and lower panels by a first and second fold, seam, weld or bond, respectively, such that device is capable of being folded flat for storage along the first and second fold, seam, weld or bond and opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use, wherein the upper panel has a graspable upper tab, the upper tab () being graspable in use to open the device.

There is provided a respiratorhaving a harnessand a mask bodythat is air permeable. The mask bodyhas a sinus regionand a primary filtering regionand includes at least one nonwoven fibrous web, which web includes a layer of filter media. The sinus regionof the mask bodyexhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus regionwithout adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Maintenance-free anti-fog respirator

A maintenance-free respiratorthat includes a mask harness and a mask bodyThe mask bodyhas at least one layer of filter mediaand has a perimeterthat includes an upper segmentThe upper segmentincludes first and second concave segmentsthat are located, respectively, on first and second sides of a central planewhen viewing the mask body from a top view. A maintenance-free respiratorof this configuration is comfortable to wear and can provide a snug fit to a wearer's face, particularly beneath each of the wearer's eyes, while at the same time having an ability to improve compatibility with various protective eyewear.

A respiratorthat includes a harnessand a mask bodythat is air permeable. The mask bodyhas a sinus regionand a primary filtering regionand comprises at least one nonwoven fibrous webs, which web includes a layer of filter media. The sinus regionof the mask bodyexhibits a resistance to airflow that is greater than the primary filtering region. This resistance to airflow is achieved through an alteration of the intrinsic structure of the plurality of nonwoven fibrous layers in the sinus regionwithout adding additional material to the mask body. The alteration of the intrinsic structure assists in preventing eyewear fogging.

Growing community of inventors

Langley Park, United Kingdom

John M Facer