A solar control member for determining solar control for a window includes an optically massive layer between a gray metal layer and a titanium nitride layer. The air purification system for a vehicle provided by the present invention includes an ozone purifier that is formed to contain an activated carbon therein and disposed on a surface of a vehicle component disposed at a position at which an air flow path is formed while the vehicle is running. The attachment portion is configured to engage the battery receiving portion. Furthermore, power consumption of the chip is significantly reduced, and the wiring arrangement of the IOs is greatly simplified. The locking mechanism is configured to be movable between a retracted position, in which the engagement end of the bracing link does not engage the base to prevent rocking motion of the chair, and an extended position, in which the engagement end of the bracing link engages a bearing surface of the base to prevent rocking movement of the chair.