Izi mankhwala ndi poizoni ndi zolimbikitsa kwambiri pa kupuma limba. Anthu omwe ali ndi vuto lakupha m'kamwa molakwika amakhala ndi zizindikiro zoopsa za kuwonongeka kwa m'mimba ndipo mlingo wakupha ndi 0.4 ~ 4g. Panthawi yogwira ntchito, wogwiritsa ntchito ayenera kuvala zida zodzitetezera kuti asatengeke ndi poizoni. Zida zopangira ziyenera kusindikizidwa ndipo malo ogwirira ntchito azikhala ndi mpweya wabwino.
Madzi Kuchiza Sodium Silicofluoride, Sodium Fluorosilicate, SSF, Na2SiF6.
Sodium fluorosilicate angatchedwe sodium silicofluoride, kapena sodium hexafluorosilicate, SSF. Mtengo wa sodium fluorosilicate ukhoza kutengera mphamvu yazinthu, komanso chiyero chomwe wogula amafunikira.