A vehicular air purifier is also named as an air purifier for a vehicle or a vehicle air purifier. The vehicular air purifier is air purifying equipment specially used for purifying PM2.5 and poisonous and harmful gas (formaldehyde, benzene series, TVOC and the like) in air in the vehicle. A plurality of different technologies and media are applied to the air purifier so that the air purifier canprovide clean and safe air for a user. The common air purifying technologies comprise an adsorption technology, a negative (positive) ion technology, a catalytic technology, a photocatalyst technologyand the like; and a material technology mainly involves a photocatalyst, activated carbon, synthetic fiber, a HEAP efficient material, a negative ion generator and the like. The variety of air purifiers in the market at present is great, the functions are largely identical but with minor differences, and the product appearances are monotonous and have no characteristic. Aiming at the problem, thevehicular air purifier which is advanced and fashionable in product appearance design, and selectable in color, and can meet the requirements of different personalities is designed. The appearance design of the vehicular air purifier is optimized on the functional basis that an existing air purifier meets the requirements of using occasions for the vehicle.