| 摘要 |
PURPOSE: An air filter which can easily preventing outer air from directly entering is provided to prevent the air leakage of the filter by uniting a packing made of an elastic material with a top lid. CONSTITUTION: An air filter which can easily preventing outer air from directly entering comprises a main body(10), a filter(30), a top lid(40) and a bottom lid. The main body is cylindrical shape and has fixed depth to the upper side from the lower side. The filter is combined in and surrounds the outer circumference of the main body. The top lid is combined with the upper surface of the main body. A hole is formed on the center of the top lid. The top lid is connected with a packing made of an elastic material. The bottom lid is connected to the lower side of the main body. The side part of bottom lid is tray shape.
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