1. The baffles in the fume hood cannot be disassembled at will. When there is no baffle, there is only one air inlet at the top. With baffles, it is equivalent to dispersing the air inlets at the top to various parts of the fume hood, so that the airflow in the fume hood is more efficient. Smooth and uniform into the pipeline.
2. Items should be placed as far as possible in the central rear area of the cabinet. Generally, no items should be placed within 15cm of the left and right side walls and the door of the cabinet, because these places are very likely to cause eddy currents.
3. During and after the experiment, the fume hood door should not be pulled too high. The high position of the cabinet door will reduce the capture rate of pollutants and increase the leakage rate. The personnel will also expose their faces to pollutants during operation. , while also increasing energy consumption.
4. Do not put your upper body or head into the fume hood during the experiment.
5. The location of pollutants in the fume hood. Generally, the air inlet inside the fume hood is on the inside and the top. Therefore, the closer the pollutants are to the interior, the higher the capture rate of the fume hood. Experimenters should be in a fume hood for at least 20cm when operating a test that generates smoke or emits gas.
6. The influence of large equipment on airflow. Large equipment placed in the fume hood has a great impact on the airflow obstruction entering the fume hood. The airflow will generate eddy currents on the front of it and return to the indoor environment. The better solution is to raise Large equipment so that the airflow around it can enter the fume hood and reduce the risk of escape.
