Laminar flow hood is one of the isolation device for operator and product shielding , to avoid product contamination.
Absorptionthe clean indoor air by ertical laminar flow (i.e., uniflow) form,  making clean air static pressure through the fan,and  through efficient mesh filter again , air will be more clean. Then make uniform wind  flow into the workspace, to take away dust particles in the work erea, forming a partition work environment more clean.It can avoid cross contamination and isolation from the outside world.