Q.  How Salt Lamp works?
A.  A Salt lamp comprises of a mass of Himalayan mined salt that holed-out to provide space for a light bulb or candle. The light glowing through the salt crystal medium give heat to the salt and it release negative ions that infuses a natural calm bringing the body and mind to a gradual sense of serenity and wellbeing. Splended glow can range in color from white to a dark salmon pink. 
 Q.   What Are Negative ions?
In nature negative ions are created by means of wind, sunlight, surf, waterfalls and rainstorms. Generally; a negative ion is an electronically charged molecule made up of oxygen. The human body is surrounded by ions; therefore, the function of electrons inside and outside the cells has significant influence on the human body. It makes the body strong if good ions are taken. When the amount of Negative Electric Ions contained one cc of air inhaled reached 5,000 to 50,000, it strengthens the body’s resistance and immunity; and when the amount of Negative Electric Ions contained in one D.C. of air reached 100,000 to 500,000, it relieves illnesses. Negatively Charged Electric Ions in our body are essential in sustaining and improving our health. Whereas 85% of the Negative Electric Ions are absorbed from our skin, only 15% is inhaled and absorbed through our lungs.
Click here to study in detail about Negative ions 
 Q.  My lamp sweats and it’s starting to melt all over the table. How can I get it to stop?
Himalayan pink salt lamps remove contaminants from the air by absorbing the microscopic water droplets which carry them. The hot salt crystal then evaporates clean water back out into its surroundings while keeping any absorbed particulate trapped inside. This process – called hygroscopy – means that sometimes a Himalayan salt lamp is going to sweat.One possible solution is to leave your lamp turned on for long time. Salt lamps don’t use much energy, so you won’t have to worry about running your electric bill up or hurting the environment by doing so.If you already leave your salt lamp running all day every day, see if you can find a less humid location in your home where the lamp can live. Keep it as far away as possible from wet areas like the bath, kitchen and laundry.If your are using a giant size Salt Lamp; you may also want to try using a higher-wattage bulb which will generate more heat and help the water trapped inside the crystal to evaporate faster. Just remember not to exceed the manufacturer’s specifications for maximum bulb strength which should be stamped somewhere on the bulb housing.
 Q.  I’ve tried everything, but the lamp is still sweating. Help?
If you and your Himalayan salt lamp live in a climate which is simply humid enough that the salt crystal will always sweat, there are a couple of steps which you need to take to both lengthen the life of your lamp and prevent any accidents which may occur as a result of the excessive moisture.
Leave the lamp turned-On for long time to evaporate as much of the water from inside the crystal as possible.
Use a dry, lint-free cloth to pat the salt crystal dry whenever you notice a large build-up of moisture on the outside.
Also, keep an eye out for flickering as this may indicate that the bulb housing has taken on moisture or has become damaged. If you notice the bulb has started to flicker or otherwise malfunction, turn off the lamp and let it cool down, then remove the bulb housing and test the bulb to make sure it’s not too hot to touch. Carefully, remove the bulb and inspect all of the components for corrosion, loose contacts or any other visible damage. If you either cannot find or can’t fix the problem with the bulb housing, you may simply need to replace the cord assembly.
 Q.  The light is too bright to sleep with it on.
If you want to keep your Himalayan pink salt lamp in the bedroom, but it’s too bright to for you to sleep with the lamp on, here are a few options which might work for you: Assuming that your lamp didn’t come with a dimmer switch, you may want to purchase one of these. (Alternatively, if you haven’t purchased your salt lamp yet then you may want to purchase a salt lamp that comes with the capability to dim the light, such as this one)If the lamp is still too bright even when fully dimmed, you could try moving it into a nearby closet or some other area which would shade the light without removing the lamp from your immediate vicinity.If the first two options seem like a hassle, the easiest solution would be to keep the lamp on a coaster, but go ahead and turn it off while you sleep.
 Q.  My lamp is starting to look dirty. How can I clean it without melting the salt?
If your Himalayan salt lamp has been attracting dust and it’s starting to look a bit dingy, no worries! Cleaning a Himalayan salt crystal is easy.Turn off your lamp, unplug it and allow the salt to cool down to room temperature. Then simply moisten a cloth or sponge so the material is damp, but not wet. (A good general rule is to squeeze out as much water as you can before touching cloth or sponge to salt.) Gently wipe away debris from the surface of the crystal and pat dry with a lint-free cloth. Then set your lamp back in its home, plug in and turn it on. Once fully heated, the rejuvenated salt crystal will naturally evaporate off any water left over from its bath.