▎ 摘　　要

NOVELTY - A portable air particulate matter purifying device, belonging to the technical field of air purifier. device comprises a power supply, a direct current high voltage power supply, a power supply is connected to the DC-to-AC inverter electrically by device switching, DC-to-AC inverter is connected with the direct current high voltage power supply electric to the graphene magnet generator; graphene magnets of the generator is hollow cylindrical graphene magnet generator, an air inlet (5) is connected with the negative oxygen ion outlet, the air outlet is connected with the respiratory mask by telescopic tube; the device manufacturing in a box or a bag handle and/or strap is convenient for carrying. use. The utility model changes the original graphene generator magnet shape, made of or in the portable device, connected through a telescopic tube with a respiratory mask, which can be used by people breathing the air fresh and clean, prevent the harm to people of the haze, which is beneficial for people to work, life and study, with great market prospect in economic field of environment protection.