What are the key functions of a fume hood?

In state-of-the-art laboratory facilities, you'll find fume hoods, central lab benches, side desks, medicine cabinets, equipment cabinets, and gas cylinder cabinets, among other equipment. The fume hood plays a crucial role in biochemical laboratory setups and is an indispensable piece of equipment. As such, the selection of a fume hood is a significant issue in laboratory construction and deserves adequate attention. So, how do you choose the right laboratory fume hood?

The crucial function of a fume hood is its exhaust capability. In a chemical laboratory, various harmful gases, odors, moisture, as well as flammable, explosive, and corrosive substances are produced during experiments. To ensure the safety of users and prevent the spread of pollutants within the lab, fume hoods should be used near the source of contamination. However, in the past, there were few fume hoods, which were only used in laboratories with particularly harmful hazardous gases and large amounts of heat. Fume hoods were merely auxiliary to the experimental station.

In recent years, to enhance the experimental environment, experiments that were once conducted on lab benches have increasingly been moved to fume hoods, necessitating that these hoods be equipped with functions compatible with the equipment. Particularly, newly constructed laboratories often require air conditioning systems, so the planning of fume hood quantities must be integrated into the initial architectural design phase. Fume hoods are a crucial component of laboratories. Due to the improvement of laboratory conditions, labor hygiene, and work efficiency, the number of fume hoods has rapidly increased, making ventilation ducts, piping, wiring, and exhaust systems essential aspects of laboratory construction.