Microchamber Interleaving Paper, developed and patented by Conservation Resources is very thin, nearly transparent and contains proprietary SPZ zeolite which gives it the power to remove pollutants, both airborne and those released by the collection itself. In addition it also eliminates odors such as those from smoke, mold and mildew. This paper is a thin, pure white exceptionally uniform 100% cotton paper. It is approximately one half the thickness of a sheet of bond paper. It can be used with all collections whether paper based or photographic items are involved.