静电(dian)(dian)(dian)式餐饮油(you)烟(yan)(yan)(yan)净(jing)化设备(bei)是利(li)用(yong)阴极在(zai)高(gao)压电(dian)(dian)(dian)场中发(fa)射出来(lai)的(de)(de)电(dian)(dian)(dian)子(zi)，以及由电(dian)(dian)(dian)子(zi)碰(peng)撞(zhuang)空气分子(zi)而产(chan)生的(de)(de)负离(li)子(zi)来(lai)捕捉油(you)烟(yan)(yan)(yan)粒(li)子(zi)，使(shi)油(you)烟(yan)(yan)(yan)粒(li)子(zi)带电(dian)(dian)(dian)，再利(li)用(yong)电(dian)(dian)(dian)场的(de)(de)作用(yong)，使(shi)带电(dian)(dian)(dian)油(you)烟(yan)(yan)(yan)粒(li)子(zi)被阳(yang)极所(suo)吸(xi)附，以达到(dao)除油(you)烟(yan)(yan)(yan)的(de)(de)目的(de)(de)。由于电(dian)(dian)(dian)子(zi)的(de)(de)直径(jing)非常(chang)小，其粒(li)径(jing)比油(you)烟(yan)(yan)(yan)粒(li)子(zi)的(de)(de)粒(li)径(jing)要(yao)小很多数量级。而且电(dian)(dian)(dian)场中电(dian)(dian)(dian)子(zi)的(de)(de)密度很高(gao)（可达至到(dao)亿的(de)(de)数量