選配(pei)助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)時最好去醫院，對聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)做一次(ci)全(quan)面檢(jian)查(cha)，用電測聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)等儀器(qi)準(zhun)確地評價出耳聾(long)的程度(du)，再選助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)，如果(guo)當地沒(mei)有相應條件的醫院，聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失程度(du)與助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)功率(lv)(lv)的選配(pei)可按口語(yu)試驗來估計。例如，聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)耳語(yu)聲(sheng)的人聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失30～40分貝(bei)(bei)，聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)低小(xiao)聲(sheng)的人聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失約40～50分貝(bei)(bei)，此時宜選購低功率(lv)(lv)及(ji)中(zhong)功率(lv)(lv)助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)；聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)普通講話(hua)聲(sheng)的人聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失約50～60分貝(bei)(bei)，聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)高聲(sheng)講話(hua)的人聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失60～70分貝(bei)(bei)，可選配(pei)中(zhong)功率(lv)(lv)及(ji)大功率(lv)(lv)型助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)；聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)大聲(sheng)喊(han)叫(jiao)聲(sheng)的人，聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失70～80分貝(bei)(bei)，選用中(zhong)、大功率(lv)(lv)助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)；全(quan)力(li)喊(han)叫(jiao)聲(sheng)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)不(bu)到(dao)的人聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)力(li)損(sun)失約約80～90分貝(bei)(bei)或更(geng)高，可選配(pei)大功率(lv)(lv)及(ji)特大功率(lv)(lv)助(zhu)聽(ting)(ting)(ting)(ting)(ting)(ting)(ting)器(qi)。