www.buyamag.com provide personal and car air ionizers. Negative Ions play a significant role in our environment and everyday life. There are two kinds of Ions Positive and Negative. Positive Ions are produced by: car smog, factories, heavy machinery, second hand smoke, dust, soot and other air pollutants. These positive Ions are harmful to the environment and to human health. Negative Ions released by: ocean breeze, ocean, waterfalls, rivers, forests, and other nature air cleaners and negative ion generators.