What is a Fume Hood?
A fume hood is a piece of laboratory equipment that is used to protect scientists from the possible negative effects of an experiment. This is primarily done by keeping the air inside the fume hood away from the people doing the experiment. Fume hoods also offer other features and protections that are useful in a laboratory setting. Fume hoods have distinct physical characteristics. The base of the fume hood usually looks like a typical lab bench, and may have storage built into it, above the floor. On top of and connected to the bench is a very large enclosure called a cabinet. The cabinet will have a movable door, or sash, on the front that can be raised or lowered to provide access to the worktop portion of the fume hood. Openings around the edges of the worktop and/or at the top of the cabinet allow for the removal of gases in the cabinet. Experiments are performed inside the cabinet with the sash as low as possible so as to protect the experimenters. Fume hoods come in two main ty
• Fume hoods – past to present • Fume hood terminology • Types of Fume Hoods and fume hood ventilation systems • Applicable Standards • Fume hoods testing • Fume hoods selection A/V Needs: Electrical power and screen for the PowerPoint presentation. The CES facilitator will supply the laptop and the projector. Target Audience: Architects, specifiers, project managers, owners and other design professionals. The ideal audience size can be from 10 – 40 people. This program is basic and meets the needs of professionals at every experience level. Facilitators Qualifications: All Lab Crafters’ facilitators have been trained on CES guidelines and presentation skills. In addition, they receive continuous in-depth training in the field and our considered industry experts. Cost: There is no cost to bring this program into your firm or chapter meeting. For more information contact your local fume hood expert!
A Laboratory Fume Hood is a ventilated enclosure designed to contain and exhaust fumes, vapors, mists and particulate matter generated within the hood interior. Fume hood structures are basically boxlike, with an open side (or sides) for access to the interior of the hood. A transparent, movable panel, called a sash, allows the user to restrict or enlarge the hood opening. The hood is connected, via ductwork, to an exhaust fan, usually located on the roof of the building in which the hood is located. The exhaust fan draws air from the room in which the hood is in through the hood opening and out through the ductwork. The speed of the air moving through the hood opening is known as face velocity.
