High performance. Patent Technology Efficiently Ionized. General tourmaline seats are in static condition (unforced from outside) and almost no negative ions occur. However, the Eco Tourmaline Seat uses a patented technology (*1) that is treated to generate ions, so it can perform high performance. Figure 1 is a measure of the amount of negative ions produced by the Eco Tourmaline seat. The original amount of negative ions (orange line in the diagram = 200 (pcs/cc) has been largely exceeded the original amount of negative ions (pcs/cc) in the figure, and the negative ions are displayed for a long time. There is no need to worry about tourmaline products that generate such negative ions in static status. Of course, if you lay it under the sheet, it will add pressure and friction caused by the human body, so you can expect many negative ions such as 3,000 (pcs/cc), 5,000 (pcs/cc), and 5,000 (pcs/cc). *1 Joint Patent for Panasonic and Adan Mining Institute for Mining Laboratories, #Patent 3306790