Ions cannot be produced without an energy source. An “energy source” means heat or flame, radioactivity, frictional rubbing, electricity, evaporation, etc. Ions can also be produced by high-energy events, such as an open flame or a glowing hot object. Evaporating water will produce negative ions in the air and, as a consequence, leave the damaging positive charges behind in the water that hasn’t yet evaporated.
A large block of salt, like a pink Himalayan salt rock crystal, works by attracting the water molecules in your room. In so doing, it also pulls in all the pollutants and contaminants attached to these molecules. The salt rock lamp helps to detoxify your room by capturing and holding these particles so they aren’t left floating around for you to breathe in. Then, as the bulb heats the lamp, the water vapor is released back into the air, but the rock salt lamp retains the contaminants.
"Salt crystal is naturally hygroscopic, absorbing water molecules from the air. You will notice if your salt lamp remains unlit for long periods of time, it will begin to 'cry.' The heat from a small light bulb keeps these beautiful crystals dry and in turn releases negative ions (the healthy ones found in abundance in places like oceans, waterfalls, even your shower) into the air," according to the site.
The other claim, discussed in more detail below, has to do with a study published on the effects of ionization in neural structures and blood flow in laboratory rats. In a similar issue of blindly comparing different scales, these rats (which are both not human and much smaller than humans) were directly fed negatively ionized air at high concentrations that would be inconceivable for a block of salt to produce, even if it did produce some small amount of ions.
Comes with 15-watt bulb, Dimmer switch and 6-feet electric cord. ETL-listed (complete lamp). Purify the air and beautify the home. Relax in the warm glow of this Himalayan natural salt crystal lamp. It is wholesome and good for a creative mind. Bring divine harmony to any room with this beautiful salt crystal lamp. Its therapeutic glow of orange hues infuses a natural calm bringing the mind and body to a gradual sense of tranquility and wellbeing. Experience it for yourself.