These lamps are wonderful and create a peaceful and calm environment in your home or office. I use one in my IGM acupressure practice in the room I use to give sessions. They definitely help reduce stress and provide a calming effect.
When you use these lamps in your work area, they can help reduce fatigue and minimize the effects of EMF's (Electric and Magnetic Fields) from your electronic devices. They also improve your concentration and refresh you by neutralizing the effects of an artificial environment.
One nice feature of these lamps is that they can improve sleep, relieve migraine headaches, reduce the severity of asthma attacks, boost serotonin levels in the bloodstream, help with sinus problems, and enhance the immune system.
And besides all that, they give off a beautiful, soft, warm amber glow in the room. They are great night lights and if you get one which has a dimmer switch, it can be dimmed low enough that it won't keep you awake if you sleep with it.
It works by heating the salt with the included bulb. This releases negative ions into the air, creating an effect similar to an ionizer, purifying the surrounding air. I've slept with an ionizer in my room and although it is relatively quiet, I still hear it purring. But these lamps will release the ions into the air with no noise and if you wake up in the middle of the night, it's pretty to look at (especially dimmed very low).
Give them as gifts. You can find them from $20 up to $100 on Amazon. I got the ones with dimmers.