USB Crystal Light Himalayan Salt LED LampWhen the crystal salt lamp is warmed, negative ions are released, absorb moisture, and neutralized the superfluous positive ions in the air. The heated salt lamp can be regarded as a natural ion generator. Crystal salt lamps can purify the air and remove smoke and foul smell from the air; Absorbs and removes dust mites, pollen, micro spore, and germs in the air. Can adjust allergies, asthma and other commonly children's diseases, while regulating the