Rakaposhi Natural Himalayan Salt Rock Lamp w/ 6' UL Listed Dimmer Switch - 6-9 inch / 6-9lbs CLEANSE & DEODORIZE THE AIR YOU BREATHE - Through Hygroscopy this Himalayan Pink Salt Rock Lamp removes dust, pollen, cigarette smoke, and other contaminants from the air by trapping positive ions and releasing negative ions. REDUCE ALLERGY & ASTHMA SYMPTOMS - Reduces microscopic particles of dust, pet dander, mold, and mildew from the surrounding air creating the ideal environment of health. INCREASE ENERGY LEVELS & SLEEP BETTER - Increased concentrations of negative ions such as those generated by Rakaposhi salt lamps neutralize the positive ions that wreak havoc on our bodies. NEUTRALIZE ELECTROMAGNETIC RADIATION (EM) - As they emit negative ions into the air, Rakaposhi Himalayan salt lamps work to neutralize electromagnetic radiation which flows from our electronics. Constant exposure to EM radiation is known to cause chronic fatigue, decrease the bodys immune response, and increase stress levels among other things. UNIQUELY HANDMADE & NATURALLY CARVED SALT ROCK - Rakaposhi is extracted directly from The Himalayan Mountains in Pakistan. Due to natural variations in Himalayan crystal salt weight, size, color, and shape may vary.