A system and method for prediction of the time to service components for a fleet of portable oxygen concentrators (POCs) is disclosed. Each of the POCs include a transmitter to transmit operational data. A network interface is configured to receive operational data from the POCs. A user database contains profiles of users associated with respective POCs. An analysis engine updates the profile of a user associated with a POC in the user database based on received operational data from the POC. The analysis engine determines a similar profile in the user database to the updated profile. The analysis engine predicts a service date for the component of the POC based on the similar profile and the updated profile.

A system (2000) comprising a head-mounted device (2010); at least one position sensor coupled to the head-mounted device; at least one light-filtering shield (2012) coupled to the at least one position sensor; at least one light detector (2019); and at least one computing device (2017) configured to receive, from the light detector, an indication that an intensity of light detected by the light detector exceeds an exposure threshold; determine, from the at least one position sensor, that the light-filtering shield is not positioned at the face of a worker to filter light with the intensity that exceeds the exposure threshold; and generate, in response to the determination that the light-filtering shield is not positioned at the face of a worker wearing the head-mounted device to filter light with the intensity that exceeds the exposure threshold, an indication for output.

A mask fitting level determination device includes a mask inner pressure detection unit inserted between a mask covering a mouth, nose and a face surface of a person to measure a pressure inside the mask. A circuit control unit derives information of a pressure value measured by the mask inner pressure detection unit and generates display information for the person wearing the mask. A determination display unit shows the person the display information generated by the circuit control unit. A battery unit supplies electricity to the circuit control unit and the determination display unit. A power supply switch starts and stops the supply of the electricity to the circuit control unit and the determination display unit. A start switch starts the mask inner pressure detection operation.

A system and method for completing fit tests on a respirator mask, and indicating end of service life for one or more elements of the respirator mask. The system includes an electronics module mounted on the interior of the face mask. The module includes a pressure sensor, and possibly other sensors, such as gas sensors, temperature sensors, and humidity sensors. The module may detect the pressure on the interior of the mask during fit tests to detect any leaks in the mask. The module may be used for positive and negative pressure fit tests. Additionally, the module may include one or more indicators (lights, sounds, vibrations) for alerting a user during a fit test. The module may also detect end of service life by analyzing the sensor data, and may indicate end of service life to the user.

A system and method for completing fit tests on a respirator mask, and indicating end of service life for one or more elements of the respirator mask. The system includes an electronics module mounted on the interior of the face mask. The module includes a pressure sensor, and possibly other sensors, such as gas sensors, temperature sensors, and humidity sensors. The module may detect the pressure on the interior of the mask during fit tests to detect any leaks in the mask. The module may be used for positive and negative pressure fit tests. Additionally, the module may include one or more indicators (lights, sounds, vibrations) for alerting a user during a fit test. The module may also detect end of service life by analyzing the sensor data, and may indicate end of service life to the user.

Disclosed is a respirator mask management system. The respirator mask management system comprises a database storage, a data processing unit operatively coupled to the database storage, a user mobile device communicatively coupled with the data processing unit over a communication network, and a respirator mask including a filter configured to prevent inhalation of pollutants by a user, an exhalation valve, a sensor configured to determine a state of the exhalation valve, and a microprocessor operatively coupled with the sensor and having a wireless connectivity to the user mobile device for transmitting the sensed states of the exhalation valve to a respirator mask manager of the user mobile device.

Disclosed is a respirator mask management system. The respirator mask management system comprises a database storage, a data processing unit operatively coupled to the database storage, a user mobile device communicatively coupled with the data processing unit over a communication network, and a respirator mask including a filter configured to prevent inhalation of pollutants by a user, an exhalation valve, a sensor configured to determine a state of the exhalation valve, and a microprocessor operatively coupled with the sensor and having a wireless connectivity to the user mobile device for transmitting the sensed states of the exhalation valve to a respirator mask manager of the user mobile device.

Embodiments include systems and methods for completing a fit test on a respiratory mask A method may comprise installing a speaker within an interior cavity of the face mask, wherein the speaker communicates with an electronics unit; installing a microphone within the interior cavity of the face mask, wherein the microphone communicates with the electronics unit; generating, by the speaker, a sound during the fit test; detecting, by the microphone, sound generated by the speaker during the fit test; comparing, by the electronics unit, a detected signal from the microphone to a baseline expected sound; when the detected signal is within a certain range of the baseline expected sound, indicating to the user that the fit test is completed and passed; and when the detected signal is not within a certain range of the baseline expected sound, indicating to the user that the fit test is completed and failed.

Embodiments include systems and methods for completing a fit test on a respiratory mask A method may comprise installing a speaker within an interior cavity of the face mask, wherein the speaker communicates with an electronics unit; installing a microphone within the interior cavity of the face mask, wherein the microphone communicates with the electronics unit; generating, by the speaker, a sound during the fit test; detecting, by the microphone, sound generated by the speaker during the fit test; comparing, by the electronics unit, a detected signal from the microphone to a baseline expected sound; when the detected signal is within a certain range of the baseline expected sound, indicating to the user that the fit test is completed and passed; and when the detected signal is not within a certain range of the baseline expected sound, indicating to the user that the fit test is completed and failed.

There is provided a fit testing method comprising: providing a respirator donned by a wearer; providing a sensor in electrical communication with a sensing element, where the sensor is configured to monitor a particulate concentration parameter of a gas space within the respirator, and a second particulate concentration parameter of a gas space outside the respirator, where the sensor is attached to the respirator such that the respirator such that the weight of the sensor is supported by the respirator; and providing a reader configured to communicate with the sensor, where the reader is configured to provide a respirator fit parameter based on a comparison of the particulate concentration within the respirator to the particulate concentration parameter outside the respirator.