The fluidized bed has been used generally for Industrial process such as chemical reaction process, separation process, incineration and etc. It is very efficient for such application because of equitable contact of each fluidized element with fluid passing through it and maximizing active contact area to adsorb and react from the fluid. This study had focus on application of fluidized bed for air purifier as household appliance and analyzed its performance in comparison to typical fixed media type. As a result, fluidized bed performed in this study had higher removal efficiency for acetaldehyde over two times within initial operation term and had lower pressure drop over 0.7mmAq than that of fixed media type.

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