Siffofin
1 Rage yawan fashewar gilashin sosai.Ta hanyar hanzarta fadada NIS na gilashin zafin jiki a cikin tsarin jiƙan zafi, sun magance matsalar fashewar kai.
2 Kyakkyawan aikin tsaro.Idan aka kwatanta da gilashin zafin jiki na yau da kullun, fashewar gilashin da aka jiƙa da zafi a baya ya ragu zuwa kusan 3‰.
3 Babban ƙarfin aiki.Gilashin da aka jiƙa da zafi yana da ƙarfi sau 3 ~ 5 fiye da gilashin al'ada na kauri ɗaya.
4 Farashin gilashin da aka jiƙa da zafi ya fi gilashin zafi.