▎ 摘　　要

NOVELTY - The utility model claims an air-purifying core, comprising an outer ring made of metal net and is tightly adhered to the outer ring inside of the purifying core main body, two ends of the outer ring sealed by a metal cover, the purifying core main body comprises a HEPA filter layer set orderly from inside to outside. composite absorption layer and a primary filtering layer, the purifying core body upper and lower ends are provided with foaming sealing layer, the composite absorption layer comprises a graphene layer and active carbon layer, the first filter layer comprises a joint set of sepiolite fibre and cotton fibre layer. The utility model can effectively purify the air, and has a decomposition effect, can effectively prevent environment pollution to human body.