食品車間凈化最好能與外界隔離，不能穿行或者受其他因素干擾。食品車間凈化的大小依需要的而定，一般由更衣間、緩沖間、風淋室和(he)(he)操(cao)作間(jian)(jian)(jian)(jian)等(deng)(deng)組成。更(geng)(geng)衣(yi)(yi)間(jian)(jian)(jian)(jian)放在(zai)外，主要供更(geng)(geng)換衣(yi)(yi)帽、鞋子等(deng)(deng);緩沖(chong)間(jian)(jian)(jian)(jian)應(ying)(ying)該位(wei)于(yu)更(geng)(geng)衣(yi)(yi)間(jian)(jian)(jian)(jian)與風淋(lin)室(shi)之間(jian)(jian)(jian)(jian)，也可以同時(shi)和(he)(he)幾個操(cao)作間(jian)(jian)(jian)(jian)相通;操(cao)作間(jian)(jian)(jian)(jian)放在(zai)內間(jian)(jian)(jian)(jian)，主要供產(chan)品(pin)(pin)灌裝，房(fang)間(jian)(jian)(jian)(jian)不(bu)能受日光(guang)直射，大(da)小(xiao)適當，高度(du)適宜(具(ju)體根據(ju)生(sheng)產(chan)設(she)備的高度(du)來確定(ding))。房(fang)間(jian)(jian)(jian)(jian)過大(da)，清(qing)掃和(he)(he)消(xiao)毒(du)不(bu)便;過小(xiao)，操(cao)作不(bu)便;如果頂部過高會影響(xiang)紫外線的有效滅(mie)菌(jun)效果。墻壁(bi)應(ying)(ying)光(guang)滑無死角，以便清(qing)洗(xi)和(he)(he)消(xiao)毒(du)。食(shi)品(pin)(pin)、食(shi)品(pin)(pin)車間(jian)(jian)(jian)(jian)凈化應(ying)(ying)為(wei)密閉(bi)式并(bing)保(bao)持(chi)車間(jian)(jian)(jian)(jian)靜壓差為(wei)正壓，設(she)置(zhi)(zhi)空(kong)氣(qi)消(xiao)毒(du)用的紫外線燈(deng)、空(kong)氣(qi)過濾(lv)凈化器和(he)(he)恒(heng)溫(wen)裝置(zhi)(zhi)。