Absorbent carbon breathing filter for air flow and dust-free inside.
灯内装呼吸器，确保空气的流畅及防止灰尘进入。
2
Clean Bench is a partial purification equipment, namely the use of air purification technology to a certain region of space operations to achieve a relatively dust-free, sterile condition.
超净工作台是一种局部净化设备，即利用空气净化技术使一定操作区内的空间达到相对的无尘、无菌状态。
3
Some electronic components, drugs, and chemicals must be manufactured where the air is as free as possible of dust and other particles.