| 摘要 |
Or the Disclosure: A chemical filter is provided for preventing pollutants in the atmosphere from contaminating sensitive electronic equipment, such as hard disc drives. The chemical filter comprises a layer of charcoal or charcoal-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. |
