A park in Beijing started a to save toilet paper and stop from stealing it. The Temple of Heaven Park installed facial recognition scanners. These will scan people's face before giving 60 cm of toilet paper. A person will have to wait for minutes if they want paper. A park spokesman said there was a of park visitors taking too toilet paper. He said some people came and filled their with it. The park had put up and put messages over loudspeakers asking visitors to use less toilet paper.
The facial recognition scanners have brought a . They have become a tourist . Visitors are coming to try out the machines. Videos of people taking toilet paper from the machines have gone on social media. Park staff still help people with problems using the machines or who need more toilet paper. The scanners seem to be . A user on a Chinese social site wrote: "This is a really good . I recommend that it be rolled out in toilets ." The trial is a success so far. The daily of toilet paper used has gone down by 20%.