I LOVE these things! Got 2 for Christmas last year and wanting to get some more. The heat from a lighted lamp attracts moisture.. The evaporation of water through salt emits negative ions. Negative ions restore and neutralize air quality. They help with allergies, sleep, stress..and so many other things! I also use pink Himalayan salt in place of regular salt in my diet. SO much better for you!

NinaM16

FL