Many people think that the purpose of all-steel fume hoods is ventilation, and they should not be placed in such a large space in important places. Therefore, many people will habitually place the ventilation equipment in the corner, far away from the experimental area, so as to save space occupied by other experimental furniture. Some important documents and important reagents should be placed near the experimental bench to facilitate experiments. In fact, this idea is wrong. No matter how much space the ventilation equipment occupies, it should be placed close to the experimental bench.
If the all-steel fume hood is placed far away, when harmful gases are emitted during the experiment, the ventilation device will not be able to convert and circulate the air. So even the best ventilation equipment will not have much effect. Under normal circumstances, the ventilation device should be placed close to the experimental bench, because every time harmful gases or dust are generated, it is emitted from the experimental bench. This is the “ area that is severely polluted and severely polluted, so we must take various protective measures.
If the ventilation equipment is always turned on during the experiment and faces the experimental bench, the gas can be absorbed in time and then converted into fresh air.
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