A nostril-shielding nasal mask includes a top portion having an arcuate anterior section and arcuate posterior section opposed therefrom, a hinge attached to the top portion, a bottom portion attached to the hinge; a scented air filter removably inserted through the bottom portion, and a plurality of fasteners attached to the top portion and the bottom portion. Such fasteners are configured to maintain the scented air filter away from the nostrils of the user while the bottom portion is pivoted to a raised position relative to the top portion. Each of the arcuate anterior section and the arcuate posterior section has a nose-shaped profile. The arcuate posterior section includes a deformable body selectively morphed to the nose-shaped profile and is configured to cover a major surface area of a user nose, and maintain a friction engagement with the user nose as well as the arcuate posterior section.

A respirator comprising: an air supply unit arranged to deliver air at its output. A hood suitable for use with a powered air purifying respirator (PAPR), comprising a headtop with a shoulder cape extending therefrom, wherein the headtop encapsulates a user's head and neck, wherein said headtop comprises a transparent visor, and wherein the headtop comprises a resilient neck seal, said neck seal extending inwardly from the headtop to the user's neck, to create an enclosed volume, such that in use, said user's entire head moves freely therein

A facemask assembly can include an interior air filter that is replaceable and/or contains biocidal elements. The filter can capture exhaled H.sub.2O to activate silver ions creating a biocidal environment. In some embodiments, at least part of the facemask is made via additive manufacturing. A facemask frame assembly can create a pleated filter to increase surface area and bring the filter material closer to the mouth and nose. The facemask can include a facial skirt customized to the facial geometry of the wearer. The facemask can have a permanently sealed filter than can withstand boiling and autoclaving temperatures so the mask system can be sterilized without disassembly. In some embodiments, the facemask has a visible display of how many times the facemask has been sterilized. In some embodiments, the mask includes a RFID device that can transmit how many times the facemask has been sterilized.

A retrofittable mount system for a mask having a mask window comprises a sensor removably mounted to the mask to collect information about an environment as sensor data, wherein the sensor is removably mounted to the mask with a first mount mechanism that does not penetrate the mask window. A processor is coupled to the sensor, wherein the processor executes one or more cognitive enhancement engines to process the sensor data into enhanced characterization data. An output device is removably mounted to the mask with a second mount mechanism without penetrating the mask window. The output device receives the enhanced characterization data from the processor and communicates the enhanced characterization data to a mask wearer, such that the enhanced characterization data is integrated into natural senses of the wearer and optimized for the performance of a specific task of the wearer to reduce the cognitive load of the wearer.

A personal protection system including a garment configured for attachment to a helmet, wherein the garment defines a barrier between a wearer and an environment. The system includes a control mount integral to the garment and at least partially disposed on the environment side and the wearer side of the barrier. The system may include an emitter and a sensor configured to detect a signal output by the emitter. The control mount may comprise a lens configured to transmit the signal from the emitter through the garment. A control member may be coupled to the control mount and configured to be manipulated by the wearer. When manipulated by the wearer, the control member may distort and/or disrupt the transfer of the signal through the lens that is detected by the sensor. The sensor may provide a sensor input signal based on the signal detected from the emitter.

A personal protection system including a support (100) worn around the head and a hood (400) worn over the head and the support. A ventilation unit (150) attached to the support draws air into the hood. Ultraviolet lights (360) direct light into the air stream drawn into the hood. The light renders microorganisms in the air stream innocuous.

A half facepiece respirator has a shaped support piece supporting and fixing the position of a particle or paper filter insert or outsert with either the support piece or the particle filter incorporating a face sealing component. Placed within the shaped support piece, a grille may be placed in the lower section of the shaped support piece. Additionally the half facepiece includes a head harness having a release mechanism.

A person protection system including a garment configured for attachment to a helmet, wherein the garment defines a barrier between the wearer and the environment. The system includes a control mount integral to the garment and at least partially disposed on an environment side and a wearer side of the barrier. The control mount may include a lens configured to transfer light through the garment, and a sensor configured to detect the light transferred or reflected through the lens. A control member may be coupled to the control mount and configured to be manipulated by the wearer. When manipulated by the wearer, the control member may distort and/or disrupt the transfer of light through the lens that is detected by the sensor. The sensor may provide a sensor input signal based on the detected light.

A nostril-shielding nasal mask includes a top portion having an arcuate anterior section and arcuate posterior section opposed therefrom, a hinge attached to the top portion, a bottom portion attached to the hinge; a scented air filter removably inserted through the bottom portion, and a plurality of fasteners attached to the top portion and the bottom portion. Such fasteners are configured to maintain the scented air filter away from the nostrils of the user while the bottom portion is pivoted to a raised position relative to the top portion. Each of the arcuate anterior section and the arcuate posterior section has a nose-shaped profile. The arcuate posterior section includes a deformable body selectively morphed to the nose-shaped profile and is configured to cover a major surface area of a user nose, and maintain a friction engagement with the user nose as well as the arcuate posterior section.

A retrofittable mount system for a mask having a mask window comprises a sensor removably mounted to the mask to collect information about an environment as sensor data, wherein the sensor is removably mounted to the mask with a first mount mechanism that does not penetrate the mask window. A processor is coupled to the sensor, wherein the processor executes one or more cognitive enhancement engines to process the sensor data into enhanced characterization data. An output device is removably mounted to the mask with a second mount mechanism without penetrating the mask window. The output device receives the enhanced characterization data from the processor and communicates the enhanced characterization data to a mask wearer, such that the enhanced characterization data is integrated into natural senses of the wearer and optimized for the performance of a specific task of the wearer to reduce the cognitive load of the wearer.