In the office, there are always some confidential documents that need to be destroyed, so shredders will be used, but this is not environmentally friendly, and shredded paper can no longer be used. This product aims to eliminate the printed words used in the office. The eliminated paper can continue to be printed and reused. The basic principle is to eliminate the words by laser or thermal. Due to the high complexity and low efficiency of paper recycling, most paper cannot be effectively recycled. This product can not only save manpower and material resources used in the recycling process, but also significantly improve the paper recovery rate. This product focuses on reducing the carbon footprint of the recycling process. In addition to the final by-product, physical interaction also provides users with visual reminders to encourage them to pursue a more sustainable lifestyle.