Abstract: An adsorption bed arrangement includes a plurality of rigid, shaped adsorption elements within a housing. Each of the shaped adsorption elements includes adsorptive media for removal of chemical contaminants, and preferably includes a binder to retain the adsorptive media in its shape. The adsorption elements are positioned within the housing interior and the housing is selectively openable to provide access to the adsorption elements. A particulate filter, such as with HEPA media, can be included. The particulate filter can be wrapped around a cylindrical rigid shaped adsorption element.