Air purifiler

An air purifier, comprising:

• a upper cover, having at least one grid column on front terminal of the upper cover;
• a bottom cover, having at least one grid column on front terminal of the bottom cover, wherein the grid column on front terminal of the upper cover is combined with the grid column on front terminal of the bottom cover to form a column hole through which an air flow out;
• two groups of ultraviolet LEDs, respectively having a heat sink and a ultraviolet LED, wherein the ultraviolet LED is mounted on the heat sink, and a wavelength range of the ultraviolet LED is between 100 nm and 480 nm;
• and
• a bag, having a hole, and a place in the hole, and the place inside correspond to the upper cover and the bottom cover, and a plurality of through holes arranged on a surface of the bag, the through holes connecting to the place, and the air flowed out through the through hole to the outside of the bag, and wherein there is a fixed element mounted on outer surface of the bag, and the fixed element fixes the bag on a chair back of a car chair.