The utility model relates to a plug-in air purifier, which comprises a main body, the main body is provided with a card slot which is arranged in front of the main body, a hole which is arranged above the main body and can be fixed on a vertical plane through a fixed device, and a filter plate which is used for improving the air cleanliness.The air can be purified with adsorption filter material. The purifier can absorb smoke gas and suspended particles, effectively remove fine dust in the air, improve the air quality, and purify the air in the room, car and confined space.The overall structure design of the purifier is simple and ingenious, with small volume, good mobility, beautiful appearance, simple operation and practicability.一種插卡式空氣淨化器，包含一主體，該主體設有一卡槽，裝設於主體前方；一穿孔，設於主體上方，可透過固定裝置固定於直立平面上；及一濾板，用於提高空氣清潔度。利用吸附式的濾材淨化空氣，淨化器可吸附煙塵氣體及懸浮粒子，能夠有效清除空氣中细小塵埃，改善空氣品質，淨化室内、車內及密閉空間內的空氣。淨化器整體結構設計簡單巧妙，體積小、移動性好、美觀、操作簡單且具實用性。
