We introduced a system that uses re-useable linens for surgical operations in 2008. After 3 years from introduction we were able to reduce the expense of about yen 4,340,000 per year and CO2 production of 9,548 kg CO2 x m(-2) per year. We were convinced of the effect on reducing the expense of surgical operations and of decreasing the level of CO2 production that leads to global warming.