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Filter may refer to: == Chemistry, engineering and materials == * Filter (aquarium), critical components of both freshwater and marine aquaria * Filter (chemistry), a device (usually a membrane or layer) that is designed to physically block certain objects or substances while letting others through * Filter paper, a semi-permeable paper barrier placed perpendicular to a liquid or air flow. It is used to separate fine solids from liquids or air * Air filter, a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air * Oil filter, a filter to remove contaminants from engine oil, transmission oil, lubricating oil, or hydraulic oil * Pneumatic filter, a device which removes contaminants from a compressed air stream * Water filter, removes impurities from water by means of a fine physical barrier, a chemical process or a biological process. Filters cleanse water to various extents for irrigation, drinking water, aquariums, and pools 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「filter」の詳細全文を読む スポンサード リンク
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