This machine scans a toilet user's face before it dispenses toilet paper. The device's software remembers faces, and will not dispense paper to someone who has just visited recently.
Caption: 
This machine scans a toilet user's face before it dispenses toilet paper. The device's software remembers faces, and will not dispense paper to someone who has just visited recently.
Credits: 
PHOTO: WEIBO ACCOUNT OF LEGAL DAILY