Gabaɗaya mara lafiyar muhalli, 100 bisa 100 ana iya sake yin amfani da su. 2. Mai hana ruwa, mai damshi, mai hana asu da ƙwanƙwasa. 3.High ƙarfi, low lalacewa, babu fadada, babu nakasawa, babu karaya. 4. Rage aikin gine-gine da kuma inganta aikin aiki saboda girman girman. Bayanan martaba yana buƙatar wasu yankan kawai da na'urorin haɗi masu mahimmanci don kammala shigarwa ba tare da ƙarin aiki ba. 5. Rayuwar sabis ɗin yana da kusan shekaru 25, amma ba a buƙatar kulawa ta musamman, wanda zai ceci yawancin farashin kulawa da ba dole ba. 6. Aikace-aikace da Amfanin otal, gine-ginen kasuwanci, asibitoci, makarantu, dafa abinci na gida, bandaki, adon ciki, da sauransu.