A Beijing park started a using facial recognition scanners to save toilet paper and stop from stealing it. They will scan people's and give them 60 cm of toilet paper. People will have to wait for minutes if they want paper. There was a problem of park taking too toilet paper. Some people filled their with it. The park put up and put messages over asking visitors to use less toilet paper.
The scanners have brought a . They are now a tourist . Visitors are coming to try out. Videos of people using them have gone on social . Staff help people with problems with the machines and those who need toilet paper. The scanners are popular. A media user said: "This is a really good . I recommend that it be rolled out in toilets ." The of toilet paper used has gone down by 20%.
