Anaya salt lamp emits number of negative ions into surrounding atmosphere when it is heated by an external source of electric or candles. The heat produced from the lamp breaks down Na CL Sodium Chloride in a process called ionization. This process is enhanced by natural process of NACL and resulting in producing of negative ions which eliminate the positive ions which are present in our surroundings produced from Computers, refrigerators, T.V sets and etc. Thus these lamps make the air clean, fresh and healthy to live in. for more info please contact.