Abstract: A respiratory mask includes a frame and an elbow engaged with the frame. The frame has a front surface and a rear surface. The front surface defines a connecting hole. The rear surface defines a receiving chamber. The connecting hole is in communication with the receiving chamber. The connecting hole is in communication with the receiving chamber at the rear surface. The elbow has a first end portion. The first end portion is connected with the connecting hole. The first end portion and the frame cooperatively define at least one air flow path communication air in the receiving chamber with external air.

Abstract: A humidifier for a respiratory apparatus includes a first cover, a second cover engaged with the first cover and a partition plate. The first cover defines an air inlet. The second cover defines a chamber configured to contain at least some amount of water. A heater is configured to heat the water to generate humidified air in the chamber. The partition plate is partly sandwiched between the first cover and the second cover. The partition plate defines an air outlet. Air input via the air inlet is humidified by being mixed with the humidified air and thereafter ejected through the air outlet. The air entering via the air inlet is divided by the partition plate into a plurality of flows having different flow velocities, thereby form a plurality of flow paths.

Abstract: A method and an apparatus for audio testing are provided. The method is adapted to an electronic device with a first and second audio receive devices and a first and second audio send devices. The method includes following steps. A first and second audio testing signals are sent to the first and second audio receive devices of the electronic device. The electronic device has a first loop forming by connecting the first audio receive device and the first audio send device electrically, and has a second loop forming by connecting the second audio receive device and the second audio send device electrically. The first and second audio send devices send a first and second response signals respectively. The first and second response signals are received and analyzed to test functions of the first and second audio receive devices and the first and second audio send devices.

Abstract: A method and an apparatus for audio testing are provided. The method is adapted to an electronic device with a first and second audio receive devices and a first and second audio send devices. The method includes following steps. A first and second audio testing signals are sent to the first and second audio receive devices of the electronic device. The electronic device has a first loop forming by connecting the first audio receive device and the first audio send device electrically, and has a second loop forming by connecting the second audio receive device and the second audio send device electrically. The first and second audio send devices send a first and second response signals respectively. The first and second response signals are received and analyzed to test functions of the first and second audio receive devices and the first and second audio send devices.

Abstract: A humidifier for a respiratory apparatus includes a first cover, a second cover engaged with the first cover and a partition plate. The first cover defines an air inlet. The second cover defines a chamber configured to contain at least some amount of water. A heater is configured to heat the water to generate humidified air in the chamber. The partition plate is partly sandwiched between the first cover and the second cover. The partition plate defines an air outlet. Air input via the air inlet is humidified by being mixed with the humidified air and thereafter ejected through the air outlet. The air entering via the air inlet is divided by the partition plate into a plurality of flows having different flow velocities, thereby form a plurality of flow paths.

Abstract: A respiratory mask includes a frame and an elbow engaged with the frame. The frame has a front surface and a rear surface. The front surface defines a connecting hole. The rear surface defines a receiving chamber. The connecting hole is in communication with the receiving chamber. The connecting hole is in communication with the receiving chamber at the rear surface. The elbow has a first end portion. The first end portion is connected with the connecting hole. The first end portion and the frame cooperatively define at least one air flow path communication air in the receiving chamber with external air.