Don't hang a photograph in direct sunlight For a special picture, display a copy and store the original. Avoid dust, dirt and smoke. Because they become embedded in the photo's soft emulsion surface, it is important to protect a photograph. Protect pictures that are to be displayed with glass. Store albums in a box or drawer away from dust.
Heat speeds up the aging process.
Try to keep a constant temperature, between 60-72 F is recommended. Also, avoid heat from lights and spotlights. Avoid humidity changes. A box of photographs is safer in the hall closet than in the attic or basement where humidity and temperature change too quickly and frequently Avoid acid. Plastic and paper often have acids in them.