According to the different way of air supply, purification technology can be divided into turbulent flow system and laminar flow system. (1) Turbulence system (Multi-Directional Manner) : Inlet turbulent flow system and high efficiency filter in ceiling, return air side of the mouth in the lower part or side wall, filters and air treatment is simpler, expansion of convenient, cost is low, but the air changes little, generally is 10 ~ 50 times/h, easy to produce eddy current, pollution particles may be in the interior vortex suspension loop flow, air pollution, reduce indoor purification degree. Only applicable to NASA standard 10 000 to 10 000 000 class purification chamber. (2) Laminal Flow System; The laminar flow system takes particles and dust out of the operating room through the return air outlet with uniform distribution and appropriate flow rate. There is no eddy current, so there is no floating dust. The purification degree increases with the increase of air change times, and it is suitable for the 100-level operating room according to the NASA standard. But the filter seal damage rate is relatively large, and the cost is higher.
Post time: Nov-02-2022