選(xuan)(xuan)配(pei)助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)時最好(hao)去醫(yi)(yi)院(yuan)，對聽(ting)(ting)(ting)(ting)力(li)(li)做一次全面檢查，用電測聽(ting)(ting)(ting)(ting)等儀器(qi)(qi)(qi)準確地評價出耳(er)聾的(de)程度，再選(xuan)(xuan)助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)，如果當地沒有相應條(tiao)件的(de)醫(yi)(yi)院(yuan)，聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)程度與助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)功(gong)率(lv)(lv)的(de)選(xuan)(xuan)配(pei)可(ke)按口(kou)語(yu)試(shi)驗來估計。例(li)如，聽(ting)(ting)(ting)(ting)不(bu)(bu)(bu)到(dao)耳(er)語(yu)聲(sheng)(sheng)的(de)人(ren)聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)30～40分(fen)貝，聽(ting)(ting)(ting)(ting)不(bu)(bu)(bu)到(dao)低小聲(sheng)(sheng)的(de)人(ren)聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)約(yue)40～50分(fen)貝，此時宜選(xuan)(xuan)購低功(gong)率(lv)(lv)及(ji)中功(gong)率(lv)(lv)助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)；聽(ting)(ting)(ting)(ting)不(bu)(bu)(bu)到(dao)普通(tong)講(jiang)話聲(sheng)(sheng)的(de)人(ren)聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)約(yue)50～60分(fen)貝，聽(ting)(ting)(ting)(ting)不(bu)(bu)(bu)到(dao)高(gao)(gao)聲(sheng)(sheng)講(jiang)話的(de)人(ren)聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)60～70分(fen)貝，可(ke)選(xuan)(xuan)配(pei)中功(gong)率(lv)(lv)及(ji)大功(gong)率(lv)(lv)型助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)；聽(ting)(ting)(ting)(ting)不(bu)(bu)(bu)到(dao)大聲(sheng)(sheng)喊(han)叫(jiao)聲(sheng)(sheng)的(de)人(ren)，聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)70～80分(fen)貝，選(xuan)(xuan)用中、大功(gong)率(lv)(lv)助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)；全力(li)(li)喊(han)叫(jiao)聲(sheng)(sheng)聽(ting)(ting)(ting)(ting)不(bu)(bu)(bu)到(dao)的(de)人(ren)聽(ting)(ting)(ting)(ting)力(li)(li)損(sun)失(shi)約(yue)約(yue)80～90分(fen)貝或更高(gao)(gao)，可(ke)選(xuan)(xuan)配(pei)大功(gong)率(lv)(lv)及(ji)特大功(gong)率(lv)(lv)助(zhu)(zhu)(zhu)(zhu)聽(ting)(ting)(ting)(ting)器(qi)(qi)(qi)。