We need light to see, but the light that we frequently use is overly bright and emits at frequencies that are overwhelming to our eyes. Unfortunately, there was no sufficient alternative to typical light sources until the invention of the Himalayan salt lamp. The versatile salt stones come in natural and shaped sculptures which have a unique aesthetic that’s unmatched. The pinkish-orange hue that the lamp emits is soothing and warm, but you can also try a multicolor USB lamp to pick a color that fits your architectural dreams. In addition to the visible effect on the ambiance, salt possesses a quality known as hygroscopy that absorbs water vapor and the attached microbes from the air. They also emit negative ions that reverse the effect of positive ionization from other technological devices which are known to have detrimental health effects over time such as increasing the risk of cancer. Combined with the natural beauty of the hazy, soft light that is more enjoyable than a bright overhead or grating florescent light, a Himalayan Rock Salt Lamp will instantly improve the ambiance of any room in a natural and healthy way. Adding a Himalayan rock salt lamp will instantly improve the ambiance of any room in a natural and healthy way.

[…] Many natural living advocates claim that the negative salt ions that are released by heating the salt can boost blood flow, improve sleep, increase levels of serotonin in the brain, and calm allergy or asthma symptoms. It has also been said that the negative ions are known to neutralize electromagnetic radiation from household electronics, as well as prevent the build up of static electricity. (source) […]

As I described earlier, a Himalayan salt lamp by its salty nature is able to easily attract water vapor to it. With this water vapor often comes indoor air pollutants, including allergens, mold and bacteria. When the water hits the heated lamp, the salt traps the pollutants but releases the water vapor. This cycle repeats while the lamp is on and warm. By removing pollutants from the air, the salt lamp leaves you with cleaner, healthier air.

Mined from a 250 million-year-old dried seabed, pink Himalayan salt is thought to have many beneficial health properties. This salt lamp gives off what might be called a primordial glow, one part sunset, one part molten lava, creating a light source that captivates all who are near it. Adjust the simple electronic dimmer to get the desired intensity of glow. A metal base is filled with Himalayan salt, and one 15 W incandescent light bulb (included).

 This claim stems from research performed on laboratory rats who were under anesthesia and essentially pumped directly with high concentrations of negatively ionized air. It goes without saying that humans are not rats, and a that specifically designed laboratory ionization instruments produce a whole lot more ions than a salt lamp, which, not to drive this point home too much, they do not.

Also, your citation of an EPA website is useless. It just links to the EPA’s IAQ site, which isn’t helpful in trying to figure out what you actually were using from the site. I don’t think I’d use WebMD as a source either if you want to appear reputable to the more intelligent people who can spot bullshit. (Not say WebMD doesn’t have valuable info. Kinda like Wikipedia, a lot is useful and valid, but I would never use it as a source.)

Since positive ions are often created by electronic devices like computers, TVs, microwaves, and even vacuum cleaners, they can often exacerbate problems like allergies, stress and sleep trouble. Negative ions can neutralize positive ions (they bond together) and help cleanse the air. Additionally, salt lamps offer a soothing glow that many people find relaxing.
How it works Himalayan Salt Lamps also release negative ions and counteract positive ions. This happens when the heat from the light bulb evaporates the water molecules. Salt lamps do not release a ton of negative ions, but enough that you will be able to feel the positive effects. Putting more than one lamp in a bigger space can increase the benefits.
HimalayanImpex is one of the leading manufacturer, wholesaler and exporter of Himalayan salt products since 2004. We provide unmatched quality to our valuable customers while maintaining high standards in production as well as customer service. We manufacture and export Salt Bricks, Tiles of every size & colour, cooking slabs, Himalayan edible salt, different kind of salt lamps, candle holders, bath salt, detox, salt blocks, salt soaps, Animal licks and much more. Our crystal salt lamps and other handcrafted products have gained worldwide popularity.
After having this salt lamp for two months, the light bulb make a loud noise and sparked. I tried putting in a new bulb and it still wouldn't work. This ended up happening to three of the five salt lamps we purchased (I purchased five of these at once from this seller). I tried getting in contact with the seller and they never responded so now I'm stuck with 3 salt lamps that can't be used.