Fume Hood Usage
Fume Hood Usage - Related Videos
05:48
Fume Hoods and Laminar Flow Cabinets
0 Views •
2023
Robert M. Rioux & William A. Elliott, Pennsylvania State University, University Park, PA Fume hoods and laminar flow cabinets are engineering controls that operate under similar principles. Both use a constant flow of air to prevent contamination of the laboratory environment and its inhabitants. Fume hoods prevent hazardous substances from exiting the hood workspace, whereas laminar flow cabinets prevent contaminants from entering the cabinet workspace. Fume hoods are ventilation systems...
07:07
An Introduction to Working in the Hood
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2023
Hoods are a common class of instrument, which act as a protective enclosure for various types of laboratory experiments. They serve to shield experimental samples from the environment, as well as to protect the researcher from hazardous or infectious samples. “The Hood” is a term that can include laminar flow benches, fume hoods, as well as tissue culture hoods or biosafety cabinets. All hoods operate based on the principle of laminar flow and have the same basic components, including a...
11:02
Methods to Discover Alternative Promoter Usage and Transcriptional Regulation of Murine Bcrp1
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Cited by 1 •
2016
With the murine ABC transporter Bcrp1 (Abcg2) as an example, in-silico protocols are presented to detect alternative promoter usage in genes expressed in mouse tissues, and to evaluate the functionality of the alternative promoters identified using reporter assays.
07:06
Prediction of HIV-1 Coreceptor Usage (Tropism) by Sequence Analysis using a Genotypic Approach
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Cited by 16 •
2011
The prediction of the coreceptor usage of HIV-1 is required for the administration of a new class of antiretroviral drugs, i.e. coreceptor antagonists. It can be performed by sequence analysis of the env gene and subsequent interpretation through an internet based interpretation system (geno2pheno[coreceptor]).
10:22
MRM Microcoil Performance Calibration and Usage Demonstrated on Medicago truncatula Roots at 22 T
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Cited by 3 •
2021
A protocol to study biological tissue at high spatial resolution using ultra-high field magnetic resonance microscopy (MRM) using microcoils is presented. Step-by-step instructions are provided for characterizing the microcoils. Finally, optimization of imaging is demonstrated on plant roots.
FAQs
Air movement draws contaminants toward the hood’s exhaust path, helping capture vapors, gases, aerosols, and volatile materials near where they are released. The lowered sash supports this containment while also acting as a physical barrier between the experiment and the user. Maintaining that position is therefore important for reducing exposure and limiting contamination of the surrounding workspace.
The hood depends on controlled air movement to capture contaminants at their source. Disturbances to that airflow can weaken containment and allow hazardous material to spread beyond the enclosure. Keeping the work area organized and avoiding conditions that disrupt airflow helps the exhaust system function as intended, which is especially relevant when handling volatile reagents or aerosol-producing biological procedures.
Biology laboratories may use fixatives, solvents, stains, and other chemical reagents that can release hazardous vapors, gases, aerosols, or volatile materials. Enclosure use becomes important when these materials could expose personnel through inhalation or affect nearby surfaces and equipment. The hood provides a controlled workspace that supports safer handling while preserving the experiment’s intended chemical conditions.
Before starting, researchers should organize the work area, identify the materials that may generate hazardous vapors or aerosols, and follow the facility’s operating procedures. The sash should be used in its lowered position, and the setup should avoid unnecessary airflow disruptions. These preparations promote stable containment and help keep chemical handling from affecting the surrounding laboratory.
The hood supports biology work that uses fixatives, solvents, stains, and related chemical reagents by reducing inhalation risks during handling. It also helps protect the surrounding workspace from released contaminants. Applying the enclosure to these tasks is particularly useful when a procedure may generate vapors, gases, aerosols, or other volatile material near the experiment.
Proper use can reduce inhalation exposure and help protect the surrounding workspace while experiments involve hazardous chemical reagents. Its effectiveness depends on more than placing materials inside the enclosure: researchers must maintain an organized area, preserve suitable airflow, keep the sash lowered, and follow facility-specific procedures. Together, these practices support containment and safer laboratory operation.