Abstract: An adjustment assembly includes: a display screen, a display circuit board, a fixed connection board, an encoder and a knob assembly. The encoder includes a fixed seat and a rotation sleeve sleeved on the fixed seat. The knob assembly is formed with an installation cavity inside which accommodates the display screen, and the fixed connection board and the encoder. The fixed seat is connected to housing, and the fixed connection board is connected to a side of the fixed seat away from housing; the display screen is connected to a side of the fixed connection board away from housing, and the display circuit board is connected to a side of the display screen facing the fixed connection board.

Abstract: An air purifier includes a housing, a main circuit board provided in the housing, and an adjustment assembly including a display screen, a display circuit board, an encoder, a knob assembly, a first flexible flat cable, a second flexible flat cable, and a fixed connection board provided with a cable threading hole. The encoder includes a fixed seat and a rotation sleeve sleeved on the fixed seat. The knob assembly is formed with an installation cavity inside which accommodates the display screen, the fixed connection board and the encoder. The fixed seat is connected to housing, the fixed connection board is connected to a side of the fixed seat away from housing; the display screen is connected to a side of the fixed connection board away from housing, and the display circuit board is connected to a side of the display screen facing the fixed connection board.

Abstract: Disclosed are a method and a device for measuring a concentration of volatile organic compounds (VOCs), and a readable storage medium. The method includes: starting a sampling device to inject the VOCs of a sample gas to be measured into a gas-phase electrochemical reactor for performing gas-phase electrochemical oxidation, and converting the VOCs into carbon dioxide (CO2); and measuring a target conversion concentration of CO2 to obtain a carbon concentration of the VOCs in the sample gas to be measured.

Abstract: Disclosed are a device and a method for degrading a gaseous organic pollutant through electrochemical process. The device includes an electrochemical reactor, where the electrochemical reactor includes a power supply, an anode, a cathode, a proton exchange membrane; and the proton exchange membrane is provided between the anode and the cathode, and the anode, the proton exchange membrane and the cathode are clamped, and the proton exchange membrane is a gas-permeable proton exchange membrane. The method is applied to the device, and includes: applying a direct current voltage between the cathode and the anode; and inputting a gas containing the gaseous organic pollutant from the anode. The gas containing the gaseous organic pollutant is degraded at the anode, and the degraded gas passes through the proton exchange membrane and the cathode in turn, and is discharged.

Abstract: Disclosed are a device and a method for degrading a gaseous organic pollutant through electrochemical process. The device includes an electrochemical reactor, the electrochemical reactor comprises a power supply, an anode, a cathode, a proton exchange membrane, an anode airflow channel and a cathode airflow channel, the anode is provided in the anode airflow channel, the cathode is provided in the cathode airflow channel, the proton exchange membrane is arranged between the anode and the cathode, the anode, the proton exchange membrane and the cathode are clamped, and a titanium suboxide material coating is provided on a surface of the anode.