Halotherapy

Gently heated, Himalayan salt serves as a natural ionizer, thanks to salt’s hygroscopic properties. When heated, the Himalayan salt crystals attract moisture on the salt block surface, and as that moisture evaporates, negative ions are emitted.
The negatively charged ions from heated Himalayan salt serve to purify the circulating air. 
Natural environments – such as nature’s magnificent forests, beaches, and waterfalls – creates abundant negative ions, but in today’s uber-connected world, computers, smartphones, microwaves and other electronics constantly emit positive ions — also known as “electric smog” — that can leave us feeling drained and down. Excessive positive ions can also come from bacteria, mold and allergens.