Negative ion generator for van

Function: It dont form ozone and nitrogenous oxide. It increases sterilization efficacy and deodorization inside car. And also increase a drivers ability to concentrate and get rid of drivers stress with nano silver coating to steel fiber. ?Features : - Enhance a drivers ability to concentrate with release lots of negative ion - Purify all kinds of toxic substance inside car - Deodorization inside car - Clear up dirty - Quantity of generated negative ion is approximately 2,000,000 /CC in near distance. - Mode light function - Control Right/Left, Up/ Down as drivers using direction