凈(jing)化工(gong)程中各級(ji)(ji)空(kong)氣(qi)(qi)潔凈(jing)度的空(kong)氣(qi)(qi)凈(jing)化處理(li)，均應采用初效、中效、高效空(kong)氣(qi)(qi)過(guo)濾器(qi)三級(ji)(ji)過(guo)濾。100000級(ji)(ji)空(kong)氣(qi)(qi)凈(jing)化處理(li)，可采用亞高效空(kong)氣(qi)(qi)過(guo)濾器(qi)代高效空(kong)氣(qi)(qi)過(guo)濾器(qi)。

　　空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)的(de)選(xuan)用布置和(he)安裝方式(shi)，應符合：初效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)不應選(xuan)用浸油(you)式(shi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi);中效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)宜(yi)集(ji)中設置在(zai)(zai)(zai)凈(jing)化(hua)空(kong)(kong)(kong)氣(qi)(qi)(qi)調節系統的(de)正壓段(duan);高效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)或(huo)亞(ya)高效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)宜(yi)設置在(zai)(zai)(zai)凈(jing)化(hua)空(kong)(kong)(kong)氣(qi)(qi)(qi)調節系統末(mo)端，高效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)的(de)安裝方式(shi)應簡便可靠，宜(yi)檢(jian)漏和(he)更換;中效、亞(ya)高效、高效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)宜(yi)按額(e)定風(feng)量選(xuan)用;阻力、效率相近(jin)的(de)高效空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)(guo)(guo)濾(lv)(lv)器(qi)(qi)(qi)(qi)(qi)宜(yi)設置在(zai)(zai)(zai)同(tong)一(yi)凈(jing)化(hua)車間內。

　　確定集(ji)中(zhong)(zhong)或分散式凈(jing)(jing)(jing)化(hua)(hua)空(kong)氣調節系(xi)統(tong)(tong)時，應綜合考慮生產工藝(yi)(yi)的特(te)點和(he)凈(jing)(jing)(jing)化(hua)(hua)車間空(kong)氣的潔凈(jing)(jing)(jing)度等級、面(mian)積、位(wei)置等因素。凡生產工藝(yi)(yi)連續、無塵室或凈(jing)(jing)(jing)化(hua)(hua)車間面(mian)積較大(da)時，位(wei)置集(ji)中(zhong)(zhong)以及噪聲控制(zhi)和(he)振動控制(zhi)要求嚴格的潔凈(jing)(jing)(jing)室，宜采(cai)用(yong)集(ji)中(zhong)(zhong)式凈(jing)(jing)(jing)化(hua)(hua)空(kong)氣調節系(xi)統(tong)(tong)。

　　凈化空(kong)氣調節系(xi)統如需電加熱(re)時，應選用(yong)管狀電加熱(re)器，位置應布置在高效空(kong)氣過濾器的上(shang)風側，并應有防(fang)火安全措施。

　　送(song)風機(ji)可按凈化空(kong)氣調節系統的(de)總(zong)送(song)風量(liang)和總(zong)阻(zu)力值進行選擇，中(zhong)效(xiao)(xiao)、高效(xiao)(xiao)空(kong)氣過濾(lv)器的(de)阻(zu)力宜按其初阻(zu)力的(de)兩倍(bei)計(ji)算。

　　凈(jing)化(hua)工程(cheng)中凈(jing)化(hua)空氣調(diao)節系(xi)統(tong)除直(zhi)流(liu)式系(xi)統(tong)和(he)設置值班風機的系(xi)統(tong)外(wai)，應采取防(fang)止室外(wai)污染空氣通過(guo)新風口參入凈(jing)化(hua)車(che)間內的防(fang)灌倒措(cuo)施。

　　凈(jing)化空(kong)氣調節(jie)系(xi)統設計應(ying)合理利用(yong)回(hui)風，凡(fan)工(gong)藝過(guo)程產(chan)生大(da)量有(you)害物(wu)質(zhi)且(qie)局部處理不(bu)能滿足衛生要求(qiu)，或對(dui)其(qi)他工(gong)序(xu)有(you)危(wei)害時，則不(bu)應(ying)用(yong)回(hui)風。