Chemical filter

Details Chemical filter Chemical filter

B - Operations, Transporting

01

D

183/110, 23/424

B01D 46/12 (2006.01) B01D 39/00 (2006.01) B01D 39/12 (2006.01) B01D 39/20 (2006.01) B01D 53/04 (2006.01) B01D 53/34 (2006.01)

Patent

CA 1308037

Abstract Or the Disclosure: A chemical filter is provided for preventing pollu- tants in the atmosphere from contaminating sensitive electronic equipment, such as hard disc drives. The chemical filter comprises a layer of charcoal or char- coal-impregnated foam to remove organic contaminants and at least one layer of a high surface area metal to remove inorganic pollutants, such as SO2, H2S, NO2 and Cl2. In one embodiment, the chemical filter comprises a layer of charcoal, a layer of a copper foam, a layer of a nickel foam and a layer of a particle filter.

525424

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