Our acid free tissue white tissue paper comes in Ontario White. This buffering agent helps neutralize acid compounds which is useful for protecting archival items, such as: prints, artwork, photographs, books, wedding dresses and other valuable items. Exposure to air and other elements can still tarnish your items, but our tissue paper does not contribute to this process. 480 sheets per ream. Packed 5 reams per carton. See item # TIS2030ATN for Natural Kraft Anti-Tarnish paper.