A mask can comprise a covering material that is sufficiently sized to extend over a mouth and a nose on a head of a wearer. The covering material can have an outer surface and an inner surface. The covering material can define an opening therethrough. At least one transparent membrane can be coupled to the covering material and cover the opening in the covering material. The at least one transparent membrane can define a hole therethrough. An elongate conduit can define an interior passage having a central axis. The elongate conduit can be coupled to the at least one transparent membrane so that the central axis of the interior passage is aligned with the hole. The mask can further comprise at least one securing element for securing the mask to the head of the wearer.

A mask can comprise a covering material that is sufficiently sized to extend over a mouth and a nose on a head of a wearer. The covering material can have an outer surface and an inner surface. The covering material can define an opening therethrough. At least one transparent membrane can be coupled to the covering material and cover the opening in the covering material. The at least one transparent membrane can define a hole therethrough. An elongate conduit can define an interior passage having a central axis. The elongate conduit can be coupled to the at least one transparent membrane so that the central axis of the interior passage is aligned with the hole. The mask can further comprise at least one securing element for securing the mask to the head of the wearer.

Provided are a mask, a sample collecting tube, and a pathogen collecting apparatus. The mask includes a mask body, a breather valve fixed on the mask body, and a sampling structure including a pathogen adsorption portion. The pathogen adsorption portion is disposed on an inner side of the breather valve and is adapted to adsorb pathogens in exhaled gas. The pathogen adsorption portion is adapted to enter the sample collecting tube to be in contact with a sample preservation solution in the sample collecting tube.

A triboelectric personal protective equipment (PPE) includes a first layer of a first triboelectric material; a second layer of a second triboelectric material; a circuit configured to store and transfer triboelectric charge generated from the first layer and the second layer; a third layer and a fourth layer connected to and powered by the circuit. The first triboelectric material and a second triboelectric material have a difference in triboelectric charge density (TECD) of at least 35 μC/m.sup.2. The third layer and the fourth layer provide an electric field that is configured to electrify particles having a size of 10 nm to 10 μm between the third layer and the fourth layer.

A mask includes a main body. The main body includes a first outer layer, a second outer layer, a middle layer, and an inner layer which are sequentially stacked in a stacking direction. The first outer layer and the second outer layer are non-woven fabrics. The first outer layer includes a plurality of first pressed portions. The second outer layer disposed with a plurality of second pressed portions.

A mask includes a main body. The main body includes a first outer layer, a second outer layer, a middle layer, and an inner layer which are sequentially stacked in a stacking direction. The first outer layer and the second outer layer are non-woven fabrics. The first outer layer includes a plurality of first pressed portions. The second outer layer disposed with a plurality of second pressed portions.

A face mask assembly includes a mask that is wearable on a user’s face to protect the user from inhaling airborne pathogens. A nose strip is integrated into the face mask and the nose strip is comprised of a bendable material to conform to contours of the user’s face when the mask is worn. A scent patch is coupled to the mask and the scent patch is infused with a chemical scent thereby enhancing an odor of the mask. An antibacterial patch is coupled to the mask and the antibacterial patch is infused with a chemical disinfectant. The antibacterial patch releases the chemical disinfectant into air being inhaled by the user when the mask is worn thereby reducing airborne pathogen exposure for the user.

The present invention relates to a face mask for wearing over mouth and nose of a user, comprising a flexible body portion (11) and one or more fastening means (12) attached to the body portion (11). The body portion substantially covers a respiratory tract opening e.g. mouth and nostrils, of the user to block an entry of undesired airborne impurities into the respiratory tract opening. When the mask (10) is worn, a front surface of the body portion (11) is exposed to an external atmosphere and a rear surface of the body portion (11) comes in substantial contact with the face. The fastening means (12) holds the body portion (11) against the face when the mask (10) is worn.

A protective garment, such as a scarf, is provided having a first section and a second section that are detachable from one another. The first section, when detached, forms a fabric tube that may be worn over a user's nose and mouth as a gaiter or religious face and head covering for providing air filtration, while the second section continues to be worn as a garment. The first and second sections may then be reattached to again form a continuous garment. The first section may include an air filter pocket for insertion of a removable air filter to provide increased filtration. The second section may include accessory pockets.

A respiratory mask including a mask fabric body (1), and one or more holding straps (3) for holding the mask body to the face of a user, the mask body being made of a woven fabric having weft yarns and warp yarns, the weft and warp yarns having a count comprised between 10 and 1100 den, the warp density being between 14-130 warps/cm, the weft density being between 12-70 wefts/cm, wherein at least part of the body is provided with a liquid-repellent crosslinked polymer.