Patent ID: 6962156

Claim:
A personal air purifier for insertion in a user's nose compnsing: two semi-cylinders of porous foam filter media each having a base with a flat surface and an end distal from the flat surface wherein the semi-cylinders have a plurality of circumferentially spaced flattened surfaces intermediate the base and distal end; and, a thin flexible band integrally molded with the semi-cylinders and extending between the bases, the band having arcuate edges with a substantially tangential interface to the bases of the semi-cylinders; the semi-cylinders sized such that upon insertion in a nostril the distal, end of each semi-cylinder is located inside the nasal vestibule and the base of each semi-cylinder is tucked in within the nostril just behind the ala, the flexible band extending over the end of the septum of the nose preventing overinsertion of one or both of the semi-cylinders and serving as a handle to remove the air purifier from the nose.