| 摘要 |
PURPOSE: An air purifier equipped with an oxygen supply adjusting unit is provided to secure the safe environment of an indoor working place for people who work at a closed space. CONSTITUTION: An air purifier includes a plastic-based first hardware unit(10) and a plastic-based second hardware unit(20). Both hardware units are mounted on the front side of a plastic-based case(45). A filter(30) is arranged at the rear side of the hardware units. A sensor is mounted at the rear upper side of the case. An electronic valve locking unit(50) is protruded from the right lateral side of the case and is in connection with a metal-based oxygen tank(60). The hardware units filter fine dust and eliminate bad odor. Oxygen is sprayed through the filter. An oxygen concentration measuring sensor(40) detects the oxygen concentration of air and transfers signals to the electronic valve locking unit.
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