Ibintu by'ingenzi n'inyungu
1. Kuyungurura neza
Ikuraho uduce duto, ibintu bikomeye bihagaze, ibisigazwa bya karuboni, n'ibintu bya polimeri
Bifasha mu kubungabunga ubuziranenge bw'amavuta no kurinda ibikoresho biri munsi y'amazi
2. Irwanya bagiteri kandi ntizingiza ibidukikije
Imiterere y'udusimba karemano dufite ubushobozi bwo kurwanya indwara
Ibora kandi ntingiza ibidukikije
3. Guhagarara neza mu bushyuhe n'imiti
Ikomeza gukora neza mu gihe ubushyuhe buri hejuru
Irwanya aside, alkali, n'ibindi bintu bihumanya ikirere
4. Imikorere ihoraho
Gusukura neza ndetse no mu gihe kirekire
Bigabanya kuziba cyangwa gucika intege kw'imikorere
5. Uburyo bwo gukoresha ibintu bitandukanye
Ikwiriye ibikoresho byo gukaranga cyane, uburyo bwo kongera gukoresha amavuta, n'imiyoboro yo gukaranga mu nganda
Ni nziza cyane muri resitora, inganda zikora utuntu duto, serivisi zo guteka, n'izitunganya ibiryo