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Fume hood are equipments that are mainly used in a laboratory. These equipments ensure safety, as the people who work with these equipments won’t be exposed to too many hazardous and dangerous fumes. This is mainly done by keeping the air inside the fume hood, which is away from the people who are conducting experiments. Previously these fume hum were made of wood, but nowadays due to the advancement of technology they have changed and are made of mild steel and coated with epoxy. The changes of design in these devices are made to ensure much more safety. It is pretty obvious that when experiments, testing or research are conducted in a laboratory, there would be a release of hazardous chemicals, so these fume hood will protect the user who would be involved in conducting those experiments. These are primarily used for industrial applications or places where hazardous gases, vapors or dusts are released. There are mainly two types of fume hood Recirculating and Ducted. The basic principle of operation, for both fume hoods is more or less same. A recirculating Fume Hood draws the air around an experiment into a built in filter, and the discharges the pure air which goes back into the lab or cabinet. A ducted fume has the air drawn from it and into a ventilation system, where it is made pure and then is released outside of the building. There are typically several fume hoods that are attached to such a vent systems. All of us are very well aware, that laboratory equipments need certain guidelines to function. These guidelines are taken to ensure safety and protection. Similarly, while using fume hood, the user must be aware of toxic properties of the chemicals, as there are chemicals that are over explosive, so precautions must be taken. Until and unless there is no indication given by the machine that it is opening, the user should not operate it. Other than this, the user should check and compare the magnehelic reading and compare it with the reading that is displayed on the hood inspection sticker. If the reading seems to be different from the one that is displayed on the sticker, then there may be a possibility that food hoods are not operating sufficiently. It is very essential to wear gloves, safety glasses and moreover keep the entire sash clean and clear. It is very important to clear chemical residues from the hood chamber after the use. Rodsi Bhatia is the author of this article. She writes article for business products and manufacturing units. She has good knowledge for these type of lab equipments such as Laminar air flow,Incubator room, plant Test chamber etc.
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