Patent ID: 6971387

Claim:
A personal air purifier for insertion in a user's nose comprising: two semi-cylinders of foam filter media each having a base with a flat surface and a spherical shape on an end distal from the flat surface, the semi-cylinders tapered from the base toward the distal end, and 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 semi-cylinders sized such that upon insertion in a nostril the distal, spherical shaped end of each semi-cylinder is located just inside and within 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.