The hope is that tourists will become converts to high-tech, no-hands toilets. Chinese visitors have already made smart bidet seats like Toto’s Washlet a highly sought-after item. But as Toto international chief Hiromichi Tabata told the AFP, “Many celebrities say they love the Washlet when they visit Japan, but the fervor is temporary.”

Japan’s domestic toilet market is worth several hundred billion yen, but the market is expected to shrink since the majority of homes have already switched to smart toilets and the overall population is in decline. Toto already makes about one-fifth of its 544 billion yen ($4.5 billion) in annual sales from overseas.

The government is also planning to work with the International Electrotechnical Commission to establish a global quality certification for toilets with warm-water spray options, the Yomiuri Shimbun reported.

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