"The Himalayan Natural Crystal Salt Lamp also works as an air purifier. When lit, the lamp emits negative ions that fight against positively charged particles that cause you to feel stuffy and sluggish. The lit salt crystal clears the air naturally of allergens like smoke, pet dander, pollens, and other air pollutants."
There is so much anti-science in that statement. They do NOT purify air. They do NOT emit negative ions. They do NOT fight against positively charged particles, nor do positively charged particles cause you to feel stuffy and sluggish. They also do NOT clear air naturally of allergens.
A Himalayan salt lamp is nothing more than a chunk of salt with a light bulb in it. Granted, they look pretty. They have a pinkish color due to impurities in the salt. That's it! They have no healing powers at all! They are nothing but a scam!!! In fact, most "Himalayan" salt in salt maps does NOT come from the Himalayans. It comes from different mines across the world! Snopes wrote up an excellent article pointing out the immense anti-science in these lamps.
To conclude, don't fall for the claim that a simple lamp can cure you of ailments. If it sounds too good to be true, it is. These lamps do NOTHING but serve as an expensive night light. You can get a pretty night light for far cheaper than you can from purchasing a salt lamp. In addition, people with ailments using these lamps as a cure, can seriously harm themselves by not seeking appropriate medical treatment. If you have an ailment, see a doctor! Don't buy a salt lamp!!! The salt lamp, below, I made in my home in 5 seconds does as much 'curing' as expensive Himalayan salt lamp scams.
Just looking at that picture I 'feel" my allergies floating away! :-)