Basically a light bulbs sits under all of the salt rocks and it illuminates.
I did a little a research and most salt lamps are made with Himalayan salt which is super old, most says hundreds of millions of years old ?? Anyways, the heat from the light bulb causes the salt to emit negative ions and the negative ions bond with air pollutants which cleans the air.
It is said that as a result these lights clean the air and improve symptoms of asthma, allergies, and other sicknesses. -Find more info here
We turn the lamp on pretty much every night and so far DFH and I haven't been sick ( Knock on wood) so hopefully our air is cleaner.
Has anyone else heard of these? Have they helped your allergies /sicknesses at all?