Purification

Purification is the process of rendering something pure. For example, clean of foreign elements and/or pollution. It may refer to:
 List of purification methods in chemistry
 Water purification
 Organisms used in water purification
 Purification of quantum state in quantum mechanics, especially quantum information
 Purification theorem in game theory and economics, a Nash equilibrium consisting of randomly mixed strategies
 Ritual purification, the religious activity to remove uncleanliness
 Purification of the Virgin, a Christian liturgical feast
 Purification Rundown in Scientology, a procedure that supposedly rids the body of toxins
 Purification, a 2002 Crimson Thorn album
 Sweat lodge