A sheet-like filter includes a first fiber that is mainly composed of polylactic acid, and a second fiber that is mainly composed of polylactic acid and has a core portion and a cover layer covering the core portion, in which the cover layer functions as a binder for fusing the first fiber and the second fiber. In addition, when a melting point of the core portion is denoted by Tm1 and a melting point of the cover layer is denoted by Tm2, it may be Tm2<Tm1.

A surgical mask gripper covering nose apex, ala and mouth of a person is disclosed. Gripper is designed to enhance the flow of air through the mask filter and restrict the flow of air leaking through the periphery of the surgical face mask. Gripper covering the contours of nose apex and ala creates a tight seal between face skin and surgical mask. Low profile of gripper around nose allows a person to wear safety or eye glasses without any interference. Tight seal forces inhaled and exhaled air through the surgical mask filter thereby improving the particulate filtering efficiency and eliminate the fogging of safety glasses.

A transparent protective face mask, typically for non-medical use, is provided. The mask comprises a protective face covering portion to cover at least a mouth and nose of a user; side portions respectively comprising head attachment means; and a mount portion for resting the mask adjacent to and in contact with the chin of the user, whereby the face covering portion of the mask is spaced apart from the face of the user except at the mount portion. In another embodiment, the face mask comprises a flexible chin panel hinged to the face covering portion. The chin panel is releasably lockable with the face covering portion. The face covering portion may also comprise a nose portion comprising a nose bridge portion, and one or more nose protuberances flanking the nose bridge portion, for engaging with opposite sides of the nose of a user.

A facemask having a graphene layer providing antibacterial and antiviral properties. The facemask is also able to generate electricity from the wearer's breath. The graphene is a three dimensional graphene produced in situ the facemask by burning a suitable material in the facemask with a laser, i.e. laser induced graphene (LIG). Typically, the graphene comprises hydrophilic graphene, in such a way that the graphene is more hydrophilic towards one side of the substrate and less hydrophilic towards the other side of the substrate, which provides the possibility of generating an electrical potential difference using human breath.

A facemask assembly includes a facemask including a face seal defining a first end and a second end, the first end at least partially defining a filter cavity, the second end configured to form a seal with a user's face; a filter cover coupled to the first end, the filter cover further defining the filter cavity; and a filter assembly positioned within the filter cavity; and a restraint coupled to the facemask, the restraint configured to secure the facemask to the user's face.

Respirator masks may include a respirator mask body and a respirator mask gasket. The respirator mask body may include a plurality of openings for the exchange of gas and an air filtration media configured to filter particles from air passing into and out of the respirator mask body. The respirator mask gasket may be coupled to the respirator mask body and may be sized and shaped responsively to a three-dimensional scan of a portion of user's face including the user's nose and mouth and being configured to closely abut the user's face when worn. A combination of respirator mask body and respirator mask gasket may be positioned within a donning mechanism that facilitates positioning of the combined respirator mask body and respirator mask gasket over the user's face and retention thereon.

A transparent face mask for enhancing communications while controlling release of respiratory droplets. The mask includes a body formed from a thin flexible plastic material such as polypropylene. The mask body has a center diamond shaped segment that cantilevers the mask body from the bridge of a wearer's nose. The body includes right and left side segments, which each extend outward from one of the four sides of a diamond-shaped center segment to form a segment-to-segment joint between adjacent side segment pairs that flexibly conforms the side portions to the wearer's face. The face mask includes risers formed of an elongate strip of flexible material with a cloth covering for comfort and ease of fit, and the risers each provides a contact point between the mask and the wearer's face adjacent to and inward of the ear from which the mask body is cantilevered away from the wearer's face.

An air filter including a filter support that supports porous, polymeric sorbent particles that comprise a divalent metal impregnated therein.

The design is a soft flexible mask made from recyclable material that is easy to wash for re-use. It has a soft interior cavity and a hard center puck which allow for a superior seal and options for a variation of filter type and thickness. It is designed in a way that filter options and mask configuration can filter both inhalation and exhalation. It has a soft extended in-folded lip for superior seal on the face.

A patient mask including a body shaped to be placed over a face of a patient and configured to prevent the passage of viruses and/or particles therethrough and at least one port configured to receive an endoscope, a surgical instrument, or both and to conform to the shape of the surgical instrument such that the port prevents the passage of viruses and/or particles therethrough.