The utility model relates to a portable mini air filter which can be inserted into a nasal cavity, which comprises: a two-nose filter element having a through hole penetrating through the two ends thereof, and respectively accommodating a filter element in each through hole, and two nasal plugs The filter member is respectively covered with a filter screen at one end thereof, and has a connecting member respectively connected to the two nasal plug filter members between the two nasal plug filter members. The creation is closely adhered to the nasal cavity by the two nasal plug filter elements, so that the air must pass through the two filter screens and the two filter cores in sequence, further blocking the harmful suspended matter in the air on the second filter screen and the second filter core.一種可塞設鼻腔內之隨身迷你空氣過濾器，其包括有：二鼻塞過濾件，其分別具有一朝其兩端貫通之通孔，並於各通孔中分別容設有一濾芯，且二鼻塞過濾件分別於其一端覆設有一濾網，並於二鼻塞過濾件之間具有一分別連接於二鼻塞過濾件分別上之連接件。本創作藉由二鼻塞過濾件與鼻腔內緊密貼合，使空氣必須依序通過二濾網以及二濾芯，進一步地將空氣中有害懸浮物阻隔於二濾網及二濾芯上。
