The present invention relates to a face mask that protects the wearer from pathogens while enabling the wearer to be heard clearly, even at larger distances. The face mask can be a multilayered mask having a vent for expelling exhaled air and a combination of a microphone and a speaker for capturing and amplifying the sound of the wearer. Further, the face mask includes a temperature sensor for sensing the real-time temperature of the wearer, and an oxygen sensor for monitoring the blood oxygen level of the wearer. The temperature and the oxygen level can be transmitted to a paired software application installed in an electronic device for visualization and processing. The face mask amplifies the voice in situations where it is difficult to project same through the mask.

A breathing apparatus may include a heater configured to kill harmful organisms in air. The apparatus may include a vest, including a heating chamber disposed on the vest and a cooling chamber disposed on the vest. The heating chamber may include a heat source, and the heat source may heat air disposed within the heating chamber to a predetermined temperature. The heating chamber and the cooling chamber may be in fluid communication. The apparatus may include a breathing tube, including a first end and a second end. The first end may connect to the cooling chamber. The apparatus may include a breathing mask. The second end of the breathing tube may connect to the breathing mask. The cooling chamber and the breathing mask may be in fluid communication via the breathing tube.

A system for sterilization of a medical device comprising at least one medical device and at least one sterilization device. The sterilization device comprises at least one plasma generator and at least one water source and/or water vapor source for providing water and/or water vapor. The sterilization device is configured to generate plasma-activated water vapor and the system is configured to at least partially conduct the plasma-activated water vapor through the medical device.

A personal breathing apparatus installed in an aircraft that is not fully pressurized, and configured to prevent or treat an adverse physiological event. The personal breathing system is configured so as to prevent, lessen or reverse hypercapnia by (i) facilitating removal of carbon dioxide generated the pilot by controlling pilot ventilation and/or (ii) limiting or decreasing the amount of carbon dioxide generated by the pilot by controlling the amount of oxygen breathed by the pilot.

A personal breathing apparatus installed in an aircraft that is not fully pressurized, and configured to prevent or treat an adverse physiological event. The personal breathing system is configured so as to prevent, lessen or reverse hypercapnia by (i) facilitating removal of carbon dioxide generated the pilot by controlling pilot ventilation and/or (ii) limiting or decreasing the amount of carbon dioxide generated by the pilot by controlling the amount of oxygen breathed by the pilot.

A portable air processing system that takes air from the ambient or other component, heats the air to a sufficient temperature so as to deactivate at least one type of pathogen or allergen, then cools the air to a comfortable breathing temperature, and then feeds this processed air under positive pressure to a controlled environment or mask covering the nose and mouth of a wearer, thus enabling one to breath cleaner air from a controlled source while mobile or stationary.

An improved safety device for a self-contained breathing apparatus, and an improved self-contained breathing apparatus having thermal imaging capabilities.

In an embodiment a sensor device for arrangement on a mouth-nose protection includes a sensor unit having at least one sensor element configured to detect individual breathing processes of a user when the mouth-nose protection with the sensor device is used by a user and an evaluation unit configured to count the breathing processes of the user depending on a detection signal provided by the sensor unit and provide an evaluation signal for a signaling unit depending on a determined number of breathing processes.

According to one or more embodiments, a current limiting device is provided. The current limiting device includes a transformer including: a primary winding configured to accept an input current, a core electromagnetically coupled to the primary winding, and a secondary winding electromagnetically coupled to the core. The secondary winding is configured to provide a current limiting energy source based on the input current where the current limiting energy source is limited to a predetermined maximum current based on at least one characteristic of the core.

According to one or more embodiments, a current limiting device is provided. The current limiting device includes a transformer including: a primary winding configured to accept an input current, a core electromagnetically coupled to the primary winding, and a secondary winding electromagnetically coupled to the core. The secondary winding is configured to provide a current limiting energy source based on the input current where the current limiting energy source is limited to a predetermined maximum current based on at least one characteristic of the core.