SFDs at the 'Reinvented Toilet Expo', Beijing

Bill Gates used the SFD during his opening speech at the 'Reinvented Toilet Expo' in Beijing on 6th November 2018. The Expo was hosted by the Bill and Melinda Gates Foundation together with other innovators, financiers and governments between 6th and 8th November to promote innovative sanitation solutions especially applicable in the developing world.