I have had a Himalayan salt lamp for years and also got one each for my GrandKids. I bought it for the reasons below and if nothing else the ambiance for a bedroom is quite peaceful. I found it interesting the benefits of these lamps so thought would pass it on.
You do need to be aware that there are many fake salt lamps on the market. I have seen them at dollar stores and farmers markets that are quite cheap so I suspect they are not the real deal.