Box boards offered by Conservation Resources lead the world in conservation technology. Most recently we developed a conservation paper we call MicroChamber paper, which is so technologically advanced that it literally contributes to the preservation of the archival material it houses. To date the goal of archival quality storage materials has been simply to avoid harming their contents; MicroChamber papers and boards do this, but in addition they provide extremely desirable but previously unattainable preventative conservation by removing and neutralizing harmful chemicals, both external, as airborne pollutants, and internal, as by-products of deterioration. The MicroChamber boards are comprised of a combination of buffered Lig-free board for strength, thickness, and support, coupled with the broad spectrum MicroChamber technology. The paper contains alkaline buffers and our modified proprietary hydrophobic, acid-resistant SPZ zeolite which we developed and engineered after extensive research to perform the specific functions necessary to protect your collections. Our SPZ zeolite removes acids, aldehydes, ammonia, pollutants such as SO2, NOx, and H2S. It also removes oxidative gases, even in very low concentrations (see doorway and bus photos subjected to ANSI standard IT 9.15-1992 oxidative gas tests in MicroChamber test section under the Technical Information tab). This zeolite was engineered to remove all of the known deteriorative molecules that threaten our collections, even those with very low polarization levels. In the MicroChamber/Silversafe .065 solid fiber boards, the layer of tan MicroChamber paper is covered with a thin, approximately .003 in. thick layer of neutral pH, non-buffered white cotton Silversafe paper. This comprises the interior of the container. All versions of our MicroChamber papers pass the PAT.