在(zai)(zai)生產制造中 良好的(de)(de)(de)工(gong)(gong)(gong)(gong)(gong)(gong)作環境是(shi)機械(xie)加工(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)(zhi)量的(de)(de)(de)重(zhong)(zhong)(zhong)要保障，對精(jing)密加工(gong)(gong)(gong)(gong)(gong)(gong)及(ji)超(chao)精(jing)密零(ling)(ling)件加工(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)(zhi)量有重(zhong)(zhong)(zhong)要影響。 在(zai)(zai)超(chao)精(jing)密零(ling)(ling)件的(de)(de)(de)實(shi)際加工(gong)(gong)(gong)(gong)(gong)(gong)過(guo)程中，空(kong)氣(qi)(qi)中的(de)(de)(de)塵(chen)(chen)埃大于磨粒，有時會對加工(gong)(gong)(gong)(gong)(gong)(gong)表面造成損傷，影響磨粒的(de)(de)(de)加工(gong)(gong)(gong)(gong)(gong)(gong)效果(guo)，因(yin)此需(xu)要超(chao)精(jing)密加工(gong)(gong)(gong)(gong)(gong)(gong)前的(de)(de)(de)空(kong)氣(qi)(qi)凈(jing)化。 直(zhi)徑在(zai)(zai)0.5m以上的(de)(de)(de)塵(chen)(chen)埃是(shi)影響超(chao)精(jing)密加工(gong)(gong)(gong)(gong)(gong)(gong)質(zhi)(zhi)(zhi)量的(de)(de)(de)重(zhong)(zhong)(zhong)要因(yin)素，因(yin)此一般以1ft3體(ti)積中所含直(zhi)徑超(chao)過(guo)0.5m的(de)(de)(de)塵(chen)(chen)埃數量為基準來定(ding)義空(kong)氣(qi)(qi)凈(jing)化等級。

通常，超精密加工的空氣凈化等級必須達到100~10000級。 清潔是最常見的空氣凈化方式，凈化后的加工車間稱為潔凈室、超潔凈室。 一般而言，凈化主要有兩種類型，一種是整體凈化，一種是局部凈化。 局部凈化具有經濟性，通過使正壓的清潔空氣流入工作臺等局部加工區域，防止外部空氣流入，實現凈化。 由于工作人員的頭發、工作服等可能帶來灰塵，在進入工作前，工作人員必須清理室外更換特制衣物，被風淋濕，有效避免灰塵對加工質量的影響。