https://phys.org/news/2018-07-japan-home-high-tech-loo-basic.html

Household products firm Lixil has developed a latrine that sells for just a few dollars and features a self-sealing trapdoor to keep out disease-spreading insects and seal in unpleasant odours.

Now it is forming an unusual partnership with the UN's children's agency UNICEF, which will help promote the company's SATO toilet in the hope of saving lives in developing countries.