A62B23/025

TACTICAL RESPIRATOR MASK

A respirator mask, having a face cup shaped to cover a nose and a mouth of a user, the face cup having a face seal for providing an airtight flexible seal around the nose and mouth of the user, the face cup having at least one respiration port therethrough; a filter for filtering particulate elements from air, the filter received in an inhalation passage formed through the face cup by the at least one respiration port to filter air passing through the inhalation passage; and an accessory housing secured to the face cup to hold a mask accessory, the accessory housing being shaped to receive at least one accessory therein.

POLYTETRAFLUOROETHYLENE COMPOSITE FILTER MATERIAL AND PREPARATION METHOD AND USES THEREOF
20230047022 · 2023-02-16 ·

The present invention relates to the field of air filtration, in particular to a polytetrafluoroethylene composite filter material and a preparation method and uses thereof. The polytetrafluoroethylene composite filter material comprises a support layer and a polytetrafluoroethylene microporous membrane layer, and the support layer and the polytetrafluoroethylene microporous membrane layer are compounded by an adhesive, wherein the adhesive comprises a two-component polyurethane adhesive, a pore forming agent and an inorganic filler. The present invention adopts a two-component solvent-free polyurethane adhesive, and by adding a low-temperature pore forming agent and an inorganic filler, the pore forming agent forms an irregular pore channel structure at the bonding interface during curing, and the inorganic filler prevents the adhesive from entering the micropores of the polytetrafluoroethylene membrane, so that the air permeability and filtration efficiency of the polytetrafluoroethylene microporous membrane are not affected after compounding; and the prepared polytetrafluoroethylene composite filter material has good air permeability, high peel strength, good filtration efficiency and good barrier effect.

Face and neck cover with droplet filter
11576457 · 2023-02-14 ·

A face and neck cover includes a fabric tube having an inner surface and a droplet filter attached to the inner surface. The droplet filter includes a first filter layer, a second filter layer joined to the first filter layer along a first fold, and a third filter layer joined to the first filter layer along a second fold. The third filter layer is in contact with the inner surface of the fabric tube. A first filter pocket for holding an optional removable filter medium is formed between the second filter layer and the third filter layer. A second filter pocket is formed between the third filter layer and the inner surface of the fabric tube. The first, second, and third filter layers are preferably integrally formed from one continuous sheet of fabric folded and attached to the fabric tube.

POROUS BIOCIDAL FILTER
20230041267 · 2023-02-09 ·

Compositions and articles comprising a non-woven matrix for use as anti-microbial filters are provided. In some embodiments, the non-woven matrix comprises nanofibers suitable for capturing a droplet comprising a microbe (e.g. a virus particle). In some embodiments, the non-woven matrix comprises a biocide suitable for reducing propagation and/or inactivating a microbe.

Mouth protection device for a respiratory protection system

A mouth protection device for a respiratory protection system, in particular a blower respiratory protection system, comprises at least one mask base body which is configured to cover a mouth and/or nose region of a user and which delimits a breathing zone at least partially, and comprises at least one breathing air supply line, which is connected to the mask base body and delimits at least one breathing air channel that ends in the breathing zone and is configured for guiding an active breathing air flow,

wherein the mask base body is made at least largely of a flexurally soft material, the mask base body being made at least largely of a textile material.

ULTRA-LIGHT NANOTECHNOLOGY BREATHABLE GOWNS AND METHOD OF MAKING SAME
20230040653 · 2023-02-09 ·

A protective garment is constructed with a fibrous material. The fibrous material comprises a first nonwoven layer, a second nonwoven layer, and a nanofiber layer laminated between the first nonwoven layer and the second nonwoven layer. The fibrous material has a mean flow pore size greater than or equal to about 0.02 micron and less than or equal to about 0.5 microns, and a water vapor transmission rate greater than or equal to about 10000 g/m.sup.2/day and less than or equal to about 100000 g/m.sup.2/day. In a method of making a fibrous layer, a first nonwoven layer and a nanofiber layer are provided. A polyurethane reactive resin is applied to the first nonwoven layer in an amount of 2 to 30 g/m.sup.2. The nanofiber layer is then laminated to the first nonwoven layer applied with the polyurethane reactive resin and pressed to form the fibrous layer.

Personality Attachments for Communicating a Message
20230043520 · 2023-02-09 ·

The present invention relates to customized personality attachment devices that are configured to display customizable images, words, or phrases to non-verbally convey messages, feelings, or an individual's state of mind. The attachment devices have one surface having a message or image and an opposite surface having an adhesive, hook/loop, or magnetic layer enabling the attachment device to removably attach to one or more of at least face masks, earrings/rings, canisters/cups, shirts, hats/caps, walls, refrigerators, office/school boards, garages, and surfaces such as, but not limited to, helmets, shoes, purses, backpacks, car seats, head rests, the side of vehicles, clothes, customizable identifiers and so much more. The devices are washable and, depending upon placement of the devise, can be made from various types of material including photoluminescent, cotton, vinyl, polyester, polyethylene, polycarbonate, felt, twill, nylon, a variety of other plastics and materials.

Face mask
11553742 · 2023-01-17 ·

A protective face mask is provided. The protective face mask may have a removable mouth panel (or “apron”) which acts as a protective personal barrier for the user. The removable mouth panel is suitable for allowing quick access to the user's mouth to, for example, eat and/or drink without needing to remove the entire body of the mask. Further, the user's nostrils remain secured and protected beneath the remainder of the mask. The mouth panel may also be completely disconnected from the main body of the face mask to allow a user to eat and/or drink. Alternatively, the mouth panel may be partially disconnected from the mask by being rotated to the left, to the right, or upward to allow a user to eat and/or drink.

FACE MASK
20230040090 · 2023-02-09 ·

An off-the-face mask comprising a mask body comprising one or more layers and having a surface area defined by a plurality of zones, wherein at least two of the plurality of zones have different stiffness levels; and one or more straps coupled to the mask body and configured to hold the mask on a wearer of the mask.

FILTER ASSEMBLY FOR A BREATHING APPARATUS

A filter assembly for a breathing apparatus, such as a powered air purifying respirator. The filter assembly includes a frame for receiving and retaining a filter element, a cover connected to the frame and dimensioned to cover the aperture, a filter element, and an indicator for indicating when the filter element is retained in the filter frame and the cover is arranged across the aperture. A powered breathing apparatus including the filter assembly is also disclosed.