There is provided a system having an electronic device powered by at least one battery, a controller communicably coupled to at least one battery, wherein the controller is configured to: determine a state of charge of the at least one battery; and interrupt a function of the electronic device for at least one predefined time period based on the state of charge of the at least one battery, where the interruption is indicative of a state of charge of the at least one battery. There is also provided an electronic device for use in the system.

A personal protection and ventilation system is provided. The system includes a gown having front and rear panels, a hood, and visor; a fan; an air tube; and a helmet. The fan is positioned between the wearer and a body-facing surface of the rear panel. The front panel and at least a portion of the hood are formed from a first material including a first spunbond layer, a spunbond-meltblown-spunbond laminate, and a liquid impervious elastic film disposed therebetween. The first material has an air volumetric flow rate of less than about 1 standard cubic feet per minute (scfm). The rear panel is formed from a second material including a nonwoven laminate having an air volumetric flow rate of about 20 scfm to about 80 scfm. Therefore, the fan is able to intake a sufficient amount of air from the environment through the rear panel to provide cooling/ventilation to the hood.

A portable two-way protective respirator system to be worn by a person that filters ambient air of harmful viruses, bacteria, and other airborne contaminant particles and vapor components for safe and fresh breathing by the wearer, while also removing any harmful viruses, bacteria, and other airborne contaminant particles and vapor components from the person's exhaled airstream before it is emitted to the surrounding community to protect other persons therein is provided according to the invention. The system comprises a respirator mask connected by a flexible hose to an air inflow blower fan unit containing filter media that produces an incoming airstream for a first chamber contained inside the respirator mask free of those harmful contaminant particles and vapor components. A gaiter made from finely woven cotton material extending from the bottom of the respirator mask defines a second chamber for a second airstream exhaled by the person to remove viruses and bacteria from that second airstream by a diffusion mechanism as it passes between the threads of the finely woven gaiter material. The two-way protective respirator system is comfortable for the person to wear, while being highly portable to accommodate a variety of work, educational, and lifestyle activities conducted within a group setting.

An air breathing device includes a casing and an air passage cavity encompassed by the casing. The device includes a set of air intake ports and air discharge ports that connect the air passage cavity to the outside of the casing. The device includes a set of dampers that allow the air to flow into the air passage cavity during inhalation through the air intake ports. The device includes a set of dampers that allow the air to exit the air passage cavity during exhalation through the air discharge ports. The device includes a retractable display screen to display content to the wearer. The device includes a fixed display screen to display images of the mouth of the wearer captured by a camera lens or simulated based on captured voice of the wearer. The device includes UV lights, filters, network connections, camera lenses, speakers, microphones, ear plugs, and heating coils.

The present invention relates to a system for supplying tailor-made safety facemask kit or a tailor made mask liner. The facemask kit includes a moldable strip liner. The moldable strip liner can be molded easily by heating at certain temperatures. The heating means can be either by microwave, induction heating, or electromagnetic field. The moldable strip liner can be supplied either separately or can be inserted/attached to the face mask. The tailor made safety facemask comprises a transparent pre-cut sheet, an upper mask liner and a nose-part. The facemask parts are customized and manufactured to fit single individual face geometry or a group of individual face geometries. In several other embodiments of the present invention, the upper mask liner can be made up of heat moldable materials, which can easily formed by heating below 100 C. A method of covering a face by using a tailor made mask liner is also disclosed.

The present invention relates to an exhaust apparatus for releasable or permanent connection to a personal protection respiratory device that defines a filtered air volume adjacent to the face of a wearer and comprises at least one exhalation valve. The exhaust apparatus comprising a powered blower in fluid connection with the at least one exhalation valve, the blower being operable to draw a portion of the wearer's exhaled breath through the at least one exhalation valve. Using such an exhaust apparatus for releasable connection to a personal protection respiratory device improves the comfort and overall experience for respirator wearers who use the respirator for intensive work, and/or for long periods of time, and/or in hot and humid environmental conditions by removing the heat and moisture build-up inside the respirator.

A face mask with purified air inside has a mask element formed so as to cover at least a part of a user's face including at least a user's nose and a user's mouth, and components for supplying into a space between the mask element and the user's nose and the user's mouth a purified air from a source outside the mask element.

A device for creating an air curtain protecting a human respiratory system is described. The device can be a hat and/or collar worn by a person and includes a constant or on demand flow of air that passes across a person's face to create an air curtain. The flow of air moving across the face blows airborne viruses away from a person's eyes, nose, and mouth. Another concept includes a glove that is outfitted with a device that purifies the glove. A battery could be mounted on a person's wrist or forearm with a small wire running down the glove. Likewise, the glove could be outfitted with UV light embedded on the surface or just underneath a permeable/top layer of the glove. Still further, the glove can carry electrical pulses aimed to kill viruses every ten seconds or so.

A blower device for a respiratory protection system comprises a fan for generating an airflow, further comprises at least one filter element which is configured to be flown through by the airflow, comprises a housing unit accommodating the fan and the at least one filter element and comprises an air conveying channel, which accommodates the filter element and is configured for guiding an airflow between the filter element and the fan, wherein the air conveying channel is configured for a deflection of an airflow between the fan and the filter element,

wherein the air conveying channel is embodied separately from the housing unit and the at least one filter element is fixedly integrated in the air conveying channel.