Below are few Instructions on How you can Preserve Paper Money
1) Purchase acid- and polyvinyl chloride (PVC)-free holders for your banknotes to protect them from dirt, moisture and debris. If your album or individual holders contain acid or PVC, you’ll be harming your collection rather than protecting it. Banknotes.com recommends mylar-polyester holders, as used by the U.S. Library of Congress, for preserving old paper documents.
2) Use gloves when handling your paper money outside of its protective album or holder. Wearing cotton or nitrile gloves minimizes the transfer of harmful oils and dirt from your hands to your precious collection.
3) Display your collection out of direct sunlight. Sunlight can cause the images on banknotes to fade, and prolonged exposure makes paper yellow and brittle. If you need bright light to closely examine your paper money, use a halogen lamp instead.
4) Never try to repair or clean paper money yourself, even if you notice damage and imperfections. Cleaning and repair by untrained hands often decreases the value of a banknote collection. If you need to have some banknotes repaired, the Bank of Canada’s Currency Museum suggests contacting a well-known art museum or archival library for advice.
5) Store paper money in a cool, dry place, away from excessive heat and humidity. The dampness of most basements makes them a less than ideal storage space, and the heat in attics can also cause irreversible damage to your collection.