The unique Salt Lamp is made from the finest salt crystals from the Himalayan foothills and is hand carved to retain the unique natural look and beauty of the pure salt crystals. Benefits: 1. The lamps are said to release negative ions into the air 2. They are said to purify the air we breathe 3. The warm glow from the lamp will help to aid relaxation and reduce stress When the lamp is fit, it warms up attracting humidity that moistens the surface of the salt crystal. A field of negative ions build up purifying the air. Natural crystal salt always finds a balance that will calm, relax and energize. For a refreshing night's sleep light the lamp about 30 minutes before going to bed. As the rock crystal is heated by the light increased amounts of negative ions are released sweetening the air and helping you get a deep and restful sleep.