This paper describes what the sources of odor gas are in the refrigerator and analyzes how well the existingdeodorization technology seems like. Here comes the TiO2-based photocatalyst for refrigerator deodorization.As for its work principle, this is an elaboration in details. It is also discussed how various types of factors suchas carrier type, humidity and temperature affect the odor removal effect of photocatalyst materials in therefrigerator. A test is also cited for application of this technology to deodorize the refrigerator and the testresults are analyzed. This test reveals that the deodorization device in the refrigerator has an odor removalrate of more than 90%. In the end, in view of the defects of photocatalyst used for the odor gas purification inthe refrigerators, the prospect is visualized herein in order to provide the clues to subsequent studies in thefield.
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