To provide a nose filter fitted to the nostrils and the nasal septum, preventing influenza and pollinosis, preventing inhalation of sulfur oxide, dust and malodor into the body, and being usable as a nasal plug for stopping the nosebleed.

This nose filter is so formed that both ends of a retaining member 1 formed of a thin and soft wire or the wire covered with polymer synthetic resin, being easily bent and retained in an arbitrary shape are formed with projections, adhesive is applied thereto, a sliver composed of natural fibers, chemosynthetic fibers or composite fibers of the natural fibers and the chemosynthetic fibers is softly wound therearound and worked into a spherical or elliptical filter to be easily inserted or mounted on the nostrils, and the retaining member 1 is bently formed into a U shape to be fitted to the nasal septum.