A nasal insert including an antimicrobial agent is inserted into the nose to eliminate or reduce undesirable microbes in the area just inside the nose. Pads of the nasal insert can be formed from a blended polymer compound with a microbial agent. Processing of the pre-polymer results in the microbial agent being trapped in the polymer. A blowing agent or CO.sub.2 gas can be introduced in the process after decompression, and before molding to improve attraction of liquid born microbes to the nasal insert.

A nasal insert including an antimicrobial agent is inserted into the nose to eliminate or reduce undesirable microbes in the area just inside the nose. Pads of the nasal insert can be formed from a blended polymer compound with a microbial agent. Processing of the pre-polymer results in the microbial agent being trapped in the polymer. A blowing agent or CO.sub.2 gas can be introduced in the process after decompression, and before molding to improve attraction of liquid born microbes to the nasal insert.

A nasal device for filtering air breathed into a user's nose is disclosed herein. In an embodiment, a nasal device includes a body sized and shaped to be secured to at least one of a user's nostrils, and a filter positioned on the body so as to be located over at least one of the user's nasal passages when the body is secured to the user's at least one nostril, wherein the filter filters air breathed into the user's at least one nasal passage when the body is secured to the user's at least one nostril.

A nasal device for filtering air breathed into a user's nose is disclosed herein. In an embodiment, a nasal device includes a body sized and shaped to be secured to at least one of a user's nostrils, and a filter positioned on the body so as to be located over at least one of the user's nasal passages when the body is secured to the user's at least one nostril, wherein the filter filters air breathed into the user's at least one nasal passage when the body is secured to the user's at least one nostril.

A two-part mask, having a nasal portion and an oral portion, can include adhesive to secure the nasal portion to the wearer's face. The adhesive might surround the nose to form a leakproof seal. An oral portion covering the wearer's mouth might include adhesive surrounding the mouth portion. Each mask portion could be worn separately. The nasal portion might be made from a filter material. The portions might be made in part from filter material and in part from transparent material. The transparent material might be positioned to allow for external viewing of the wearer's lip movements. The portions could be customizable to provide an anatomical fit for each individual wearer. The portions might be shaped to form a balloon shape, which can allow for movement of a mask portion from an extended position when the wearer is exhaling to a contracted position when the wearer is inhaling.

A two-part mask, having a nasal portion and an oral portion, can include adhesive to secure the nasal portion to the wearer's face. The adhesive might surround the nose to form a leakproof seal. An oral portion covering the wearer's mouth might include adhesive surrounding the mouth portion. Each mask portion could be worn separately. The nasal portion might be made from a filter material. The portions might be made in part from filter material and in part from transparent material. The transparent material might be positioned to allow for external viewing of the wearer's lip movements. The portions could be customizable to provide an anatomical fit for each individual wearer. The portions might be shaped to form a balloon shape, which can allow for movement of a mask portion from an extended position when the wearer is exhaling to a contracted position when the wearer is inhaling.

Nasal masks and associated filters and structures are disclosed. One disclosed nasal mask includes a filter sheet comprising an inner side and an outer side, a pair of slits on the filter sheet, a first set of attachment means distributed on the inner side of the filter sheet, and a second set of attachment means distributed on the outer side of the filter sheet. The filter sheet is adapted to be bent along the pair of slits so that at least one attachment mean in the first set of attachment means is attached to at least one attachment means in the second set of attachment means.

Nasal masks and associated filters and structures are disclosed. One disclosed nasal mask includes a filter sheet comprising an inner side and an outer side, a pair of slits on the filter sheet, a first set of attachment means distributed on the inner side of the filter sheet, and a second set of attachment means distributed on the outer side of the filter sheet. The filter sheet is adapted to be bent along the pair of slits so that at least one attachment mean in the first set of attachment means is attached to at least one attachment means in the second set of attachment means.

A nose respiratory filtration mask or a nasal infiltration device is invented. It includes a master piece for its mounting, supporting, and sealing purposes, and a high efficiency nanofiber filter that is mounted outside the nostrils on the master piece. This invention of a nose respiratory filtration mask fills the gaps between face masks and nasal filters. It has the advantages of both face masks for their high filtration efficiency and nasal filters for their tight sealing. It is comfortable to wear with excellent respiratory protection as well as aesthetic appearance.

A nose respiratory filtration mask or a nasal infiltration device is invented. It includes a master piece for its mounting, supporting, and sealing purposes, and a high efficiency nanofiber filter that is mounted outside the nostrils on the master piece. This invention of a nose respiratory filtration mask fills the gaps between face masks and nasal filters. It has the advantages of both face masks for their high filtration efficiency and nasal filters for their tight sealing. It is comfortable to wear with excellent respiratory protection as well as aesthetic appearance.