How does your Himalayan Natural Salt Lamp Actually Emit Negative Ions?
The emission of ions is caused by the alternating actions of the crystal rock salt’s ability to absorb water, and then evaporate into the air. A heated salt crystal lamp will attract water molecules from the air, forming a NaCl and H20 solution. Sodium is a positive ion, and Chloride, a negative ion. Hydrogen has a two-part negative charge and Oxygen is a positively charged ion. These ions create a reaction of two positive ions and three negative ions. After canceling each other out, one lone negative ion is produced. This negative ion seeks out the first positive ion like a dust, or bacteria particle and zaps it. This is the process of positive ion reduction and is how our Himalayan Salt Lamps work. The best thing about a negative ion however, is the way it attracts dust and pollution. A recent study by the government in the USA has shown that dirt, dust and pollution in your own home or office, especially in large cities, can be worse than outside on the street. Dirt and dust is positively charged and is therefore attracted to the negatively charged lamps and ions that it emits. You will notice after a period of time that dark lines of dirt will begin to appear on you lamp. They are easily cleaned off with a damp cloth but it is evidence that your lamp is working, keeping down the pollutants in its intimate environment. Fewer pollutants are obviously good for anyone who has asthma or allergies.