What is the function of fume cupboard?
Fume cupboards are used widely in laboratories and are designed to capture and remove air-borne hazardous substances generated during laboratory experiments (e.g. gases, vapours, aerosols and particulates/dust).
What is the use of fume cupboard in organic chemistry?
Fume cupboards are specially designed cabinets enclosed on 3 sides that are connected to ducted extracts, opening to the atmosphere. Any toxic, flammable and combustible substances are handled inside the fume cupboard to reduce risk and exposure to users, other lab members and the surrounding community.
How does a fume cupboard keep us safe?
The extraction system ensures operators are guaranteed chemical safety when carrying out applications involving potentially toxic chemicals in working environments. Fume hoods create a clean work area by exhausting substances that can cause harm, including fumes, aerosol, gasses, vapours and dust.
What is in a fume cupboard?
Fume cupboards are designed to contain gases, vapours and fumes at source and to dilute and disperse them to the external environment. A fume cupboard is only a partial enclosure and cannot provide absolute protection against inhalation of substances used within it.
What is the meaning of fume chamber?
: a chamber with forced draft used for eliminating undesirable fumes — compare hood sense 3d(2)
What is the purpose of a ventilation hood in the laboratory setting?
A properly designed and operated fume-hood reduces exposure to hazardous fumes, vapours, gases and dusts. A fume-hood confines hazardous airborne material by diluting it with a large amount of air, drawing it through an exhaust system and then expelling the air in vents locate on the roof of building 18.
What is a fume hood and what does it do?
Purpose. Chemical fume hoods, when used properly, are one of the most reliable engineering controls in the laboratory. They protect workers by: Containing vapors, dusts, gases, and fumes generated within the hood, and removing them as air flows into the hood and then out via the laboratory exhaust system.
Is fume cupboard an apparatus?
A fume hood (sometimes called a fume cupboard or fume closet) is a type of local ventilation device that is designed to limit exposure to hazardous or toxic fumes, vapors or dusts….Ductless (recirculating) fume hoods.
| Pros | Cons |
|---|---|
| Ductwork not required. | Filters must be regularly maintained and replaced. |
How is a fume cupboard maintained?
Fume cupboards should be positioned within the laboratory away from windows, doors and walkways. This is to minimise the degree to which draughts interfere with the cupboard’s ventilation and the spread of vapour or dust.