A method of removing mercury from a process gas by means of a sorbent and a filter involves applying said sorbent to at least one filtering surface of the filter. The dampening materials in an embodiment may include, but not be limited to, silicon, epoxies or urethanes and selection of various dampening materials may provide for varying degrees of stiffness. Each of the modules is a fully functional, thin-film, photovoltaic device and includes first and second conductive layers and at least first and second semiconductor layers disposed between the conductive layers.