工業上(shang)(shang)常規的(de)空(kong)氣凈化(hua)過濾(lv)器一(yi)般分為(wei)3個等(deng)級(ji)，初級(ji)、中級(ji)、*過濾(lv)，初效過濾(lv)器是空(kong)調系統的(de)初級(ji)過濾(lv)，主要(yao)用于過濾(lv)5μm以上(shang)(shang)塵(chen)埃粒子。初效過濾(lv)器有(you)板(ban)式(shi)、折疊(die)式(shi)、袋式(shi)三種(zhong)樣(yang)式(shi)。中效過濾(lv)器主要(yao)捕(bu)集1-5um的(de)顆(ke)粒灰塵(chen)及(ji)各(ge)種(zhong)懸浮物(wu)，采用熱融(rong)工藝，結構穩定，降低破(po)漏(lou)風(feng)(feng)險，具有(you)風(feng)(feng)量大、阻力小、容(rong)塵(chen)量高。高效過濾(lv)器主要(yao)用于捕(bu)集0.5um以上(shang)(shang)的(de)顆(ke)粒灰塵(chen)及(ji)各(ge)種(zhong)懸浮物(wu)，作為(wei)各(ge)種(zhong)過濾(lv)系統的(de)末端過濾(lv)。采用玻(bo)璃纖維紙(zhi)作濾(lv)料(liao)。

潔(jie)凈(jing)(jing)空(kong)(kong)(kong)調(diao)系統中所使(shi)用的(de)空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)濾(lv)器(qi)在(zai)經(jing)過(guo)一(yi)段時(shi)間(jian)(jian)運行(xing)后(hou)，其容(rong)塵(chen)量和空(kong)(kong)(kong)氣(qi)(qi)(qi)阻(zu)力(li)都會達(da)到其允許的(de)*大值。此時(shi)，就應該進行(xing)更(geng)換，否(fou)則潔(jie)凈(jing)(jing)空(kong)(kong)(kong)調(diao)系統將無法正常運行(xing)，致使(shi)送風(feng)(feng)量減小，風(feng)(feng)速和換氣(qi)(qi)(qi)次數不足(zu)，潔(jie)凈(jing)(jing)室也將不能達(da)到使(shi)用效果。在(zai)對高效過(guo)濾(lv)器(qi)拆除之前要對室內的(de)設(she)備等(deng)(deng)采(cai)取保護措施，防止末端(duan)空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)濾(lv)器(qi)拆除中和拆除后(hou)，風(feng)(feng)道、靜壓箱等(deng)(deng)處(chu)積存的(de)灰塵(chen)落(luo)下(xia)對設(she)備和地板造成污染，在(zai)更(geng)換潔(jie)凈(jing)(jing)空(kong)(kong)(kong)調(diao)系統中各(ge)級(ji)空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)濾(lv)器(qi)時(shi)應注意：潔(jie)凈(jing)(jing)空(kong)(kong)(kong)調(diao)系統中所使(shi)用的(de)各(ge)級(ji)空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)濾(lv)器(qi)在(zai)什(shen)么情(qing)況下(xia)應該更(geng)換，應根據各(ge)自(zi)的(de)具體條件決定。新風(feng)(feng)空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)濾(lv)器(qi)(粗效)和中間(jian)(jian)空(kong)(kong)(kong)氣(qi)(qi)(qi)過(guo)濾(lv)器(qi)(中效)的(de)更(geng)換，可(ke)以在(zai)空(kong)(kong)(kong)氣(qi)(qi)(qi)阻(zu)力(li)為(wei)初阻(zu)力(li)值的(de)1.5-2倍時(shi)進行(xing)。