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US 2002/0177520 A1Published application
Chemical filter
AssigneeNichias Corporation
InventorsMinoru Tanaka, Kazuki Yamana
Life of this patent
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Abstract
A chemical filter comprising a carrier with a honeycomb structure made from a fibrous paper having a fiber void of 70-95%, an oxidation catalyst, an acid gas reactant, and activated carbon powder carried on the carrier is provided. The chemical filter alone can remove organic solvent vapor and acid gases without requiring other removing means.
Claims5
A chemical filter comprising a carrier with a honeycomb structure made from a fibrous paper having a fiber void of 70-95%, an oxidation catalyst, an acid gas reactant, and activated carbon powder carried on the carrier.
Dependencies are inferred from the claim text.