Features A. natural negative ion generator: containing positive and negative ions in the air, must obtain a certain balance between the positive and negative ions. When the salt crystal lamp is warmed, it will release negative ions to absorb moisture, and excess positive ions (home computers, electrical appliances will produce excessive positive ions) and in the air. Natural salt crystal lamp is actually a natural negative ion machine, which can purify the air, release negative ions. B. electromagnetic radiation shield: Crystal salt lamps lit release frequency is called "Shuman Bo" naturally adjust and suppress high-frequency electromagnetic waves generated by the appliances. C. relieve fatigue: the natural light is soft and pleasing to the eye of the salt crystal lamps unmatched by any artificial lighting. Orange, light yellow, creamy white, different colors on the human body have different physiological, psychological therapeutic effect, it sends is called "Shulman lightwave frequency, can effectively relieve eye fatigue, and can help people relax, emotional stability purify, sober force. D. scavenge free radicals to eliminate allergies: Crystal salt lamps can remove smoke and odor in the air; absorption, clear the air of dust mites, pollen, micro-bacteria spores, bacteria and other. Adjustable allergies, asthma and other childhood diseases, and regulation of the immune system.