1. Rahoton gwaji na ma'aunin China, amfani guda ɗaya.
2. Zane mai laushi mai laushi, shirin hanci daidaitacce, da madauki na kunne na roba.
3. Abubuwan da ba su da guba da rashin haushi.
4. 3 yadudduka kariya, high kwayoyin tacewa yadda ya dace, low numfashi juriya.
5. Hana ƙwayoyin cuta, ƙura, pollen, barbashi sinadarai na iska, hayaki da hazo.