The system has been installed in the men's toilets in four stations of the Tokyo Metro, including Akihabara, Soga and Ikebukuro.
International Space Station | station | Riccarton Junction railway station | Fuji Station | London King's Cross railway station | Shōnandai Station | Independent station (North America) | independent station | Central railway station, Sydney | London Victoria station | College Station, Texas | Union Station | McMurdo Station | Euston railway station | Cape Canaveral Air Force Station | St Pancras railway station | Jingū-mae Station | Amsterdam Centraal railway station | Luxembourg railway station | Jinshajiang Road Station | Siple Station | Edinburgh Waverley railway station | College Station | Perth railway station | London Waterloo station | Jinyun Road Station | Naval Station Norfolk | Mandurah railway station | Liverpool Street station | Hökarängen metro station |