Probably the most well-known benefit – and why the majority of people use them – is due to their incredible power to remove dust, pollen, cigarette smoke, and other contaminants from the air. “But how do they do this,” you ask? “It’s just a big chunk of salt with a light bulb inside, right?”
Well yes, but no. There’s much more to it than that.
Himalayan salt lamps purify air through the power of hygroscopy, meaning that they attract water molecules from the surrounding environment then absorb those molecules – as well as any foreign particles they may be carrying – into the salt crystal. As the HPS lamp warms up from the heat produced by the light bulb inside, that same water then evaporates back into the air and the trapped particles of dust, pollen, smoke, etc remain locked in the salt.