無菌室一般是在微生物實驗室內專辟的一個小房間，面積不宜過大，約4m2~5m2，高2.5m左右即可。無菌室外要設一個緩沖間、凈化風淋間及更衣間。無菌室和緩沖間都要密閉。室內裝備要有空氣過濾裝置。無菌室和緩沖間都裝有紫外線燈，無菌室的紫外線燈距離工作臺面1m。無菌室內的地面、墻壁要平整，不易藏污垢，便于清潔。工作臺的臺面要處于水平狀態。工作人員進入無菌室應在更衣室穿戴好滅菌的衣、帽、鞋，經過凈化風淋室，再到緩沖間，然后進入無菌室進行檢驗工作?？h級市的企業一般實驗室多使用小型超凈工作臺。超凈工作臺其結構簡單，便于移動，工作臺內有紫外燈和凈化風機，外部是推拉式小門或開兩個洞的玻璃門，操作時將雙臂伸進去即可。

The aseptic room is usually a small room specially set up in the microbiology laboratory. The area should not be too large, about 4m2 ~ 5m2, and about 2.5m high. A buffer room, clean air shower room and dressing room should be set up outside the sterile room. Sterile room and buffer room should be sealed. Indoor equipment should be equipped with air filtering device. The ultraviolet lamp is installed in the aseptic room and buffer room, and the ultraviolet lamp in the aseptic room is 1m away from the working table. The floor and wall of aseptic room should be flat, not easy to store dirt and easy to clean. The worktable should be in a horizontal state. When entering the sterile room, the staff should wear sterilized clothes, hats and shoes in the changing room, go through the purification air shower room, and then go to the buffer room, and then enter the sterile room for inspection. Small ultra clean worktable is often used in the laboratories of county-level enterprises. The ultra clean worktable is simple in structure and easy to move. There are ultraviolet lamps and purification fans in the working table, and the outside is a small push-pull door or a glass door with two holes. When operating, you can stretch your arms in.