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Abstract ▼ AI-Helper

Filter media finely interspersed with activated carbons were prepared by a needle punching process without using chemical binders. Their characteristics were investigated efficiently to abate environmentally harmful gas such as acetaldehyde, and were compared with those of cabin air filter coated wi...

Filter media finely interspersed with activated carbons were prepared by a needle punching process without using chemical binders. Their characteristics were investigated efficiently to abate environmentally harmful gas such as acetaldehyde, and were compared with those of cabin air filter coated with activated carbons by using chemical binders. These combination filters were installed on a vehicle fan placed in a test chamber of capacity similar to the interior volume of a commercially available passenger car, and the efficiency of acetaldehyde abatement was measured as a function of time. The filter utilizing chemical binders showed somewhat better performance for the elimination of acetaldehyde despite the adverse effect of the chemical binder that would clog the micropores of the activated carbons. It turned out that the needle punching process had the activated carbons agglomerated due to hydrophobic interactions, resulting in a relatively larger void area than that of the filter utilizing chemical binders.

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