▎ 摘　　要

NOVELTY - Compound filter tip comprises universal adsorption section and specific adsorbent section loaded with pore-A-type silica gel, graphene modified activated carbon and mixture of nano-silica-based oxide modified by linoleic acid, where the common adsorbed section and the specific adsorged section are coaxially arranged in series. USE - Composite filter tip used for absorbing 2-acetyl pyridine in cigarette smoke for removing harmful components in flue gas (claimed). ADVANTAGE - The composite filter has very ideal removing effect for 2-acetyl pyridine in cigarette smoke, which can effectively reduce the spicy taste of the cigarette; at the same time, it will not cause loss of fragrance substance in the smoke and improve the taste of whole cigarette.