Fume Hood Description:
A local ventilation device which is used to limit the exposure totoxic fumes or hazardous, dusts or vapors is known as Fume Hood.Typically, it is a large piece of equipment that is enclosing the five sides of a work area. Its bottom is commonly located at a standing work height.
There are two main types of Fume Hood that is ducted and recirculating. A same principle is followed by both of these types. From the front (open) side of the cabinet the air is drawn and either made safe through filtrationand feds back into the room or expelled outside the building.
Applications of Fume Hood:
Some most common applications where we need a Fume Hood are:- If we make any experiment with strong exothermic reactions we need Fume Hood.
- On the time of chemical vapors generated, which could cause a fire hazard
- We use Fume Hood when we are handling the chemicals with significant inhalation hazards like repairabletoxic powders, volatile radioactive material, toxic gases and toxic chemical vapors.
- When working with compounds that have an offensive odor
- Also, we need it at the time of handling the chemicals with significant vapor pressure.
Precautions:
There are some simple precautions you can take to ensure your protection:- Check airflow indicator (s)
- Keep sash closed
- Keep work 6 inches inside the hood
- Limit turbulence in front of the hood
- Reduce obstructions
Maintenance of Fume Hood:
- A sticker on the hood documents each survey.
- At least after every two years all the fume hoods are checked and calibrated.
- Fume hoods must be taken out of service that fail the minimum exhaust flow requirements until repaired or corrected.
- If a fume hood is not operating properly or alarming, you can contact the Facilities Work Request Center at X6274.
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