Fume Hood Drying
Fume Hood Drying - Related Videos
05:48
Fume Hoods and Laminar Flow Cabinets
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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...
04:17
Chemical Drying: Biological Sample Preparation for Scanning Electron Microscopy (SEM)
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2023
Scanning electron microscopy (SEM) is a powerful tool to image—primarily—the surface features of a biological sample. Proper sample preparation, however, is critical to obtaining quality images. This video focuses on the dehydration and drying steps of preparing intact adult Drosophila for SEM.
01:30
Dry Friction
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2023
Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible. To illustrate this concept, imagine a wooden crate resting on a rough, non-uniform horizontal surface. When an external force is applied to...
08:00
Measuring and Modeling Contractile Drying in Human Stratum Corneum
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Cited by 2 •
2017
This article describes a method of quantifying the dynamic drying behavior and mechanical properties of stratum corneum by measuring spatially resolved in-plane drying displacements of circular tissue samples adhered to an elastomer substrate. This technique can be used to measure how different chemical treatments alter drying and tissue mechanical properties.
FAQs
Continuous air movement carries water vapor or solvent vapor away from the drying material and into the exhaust stream. This supports evaporation while reducing the accumulation of vapors around the work area. Adequate airflow is therefore central to effective drying, because insufficient movement could interfere with the hood’s ability to direct released vapors away from personnel.
The sash helps maintain containment while materials release moisture or volatile solvent. Keeping the work positioned within the ventilated enclosure allows the moving air and exhaust system to manage vapors without leaving the work area open to them. Its use is especially relevant when drying items that retain solvent after treatment, rather than only residual wash water.
Materials placed in the hood must be compatible with the drying conditions and any solvent remaining on them. Volatile vapors also require separation from ignition sources, so drying should not occur near flames or other potential sources of ignition. These precautions help preserve the usefulness of the enclosure while reducing hazards associated with solvent vapor release.
First select items that are compatible with the process and identify whether they retain water or volatile solvent. Place them in the ventilated enclosure, maintain adequate airflow, and position the sash to support containment during evaporation. Keep ignition sources separate from the drying area, then allow the materials to dry before removing them for subsequent laboratory use.
Biology laboratories can use this practice for compatible glassware, tools, and other laboratory items after washing or solvent treatment. Drying in the hood supports cleaner preparation by helping remove residual moisture or solvent before the items are used again. The approach is therefore relevant when preparation quality and reduced vapor exposure matter during routine laboratory workflows.
The main outcome is removal of moisture or volatile solvent from compatible laboratory materials while released vapors are directed away from the work area. For biology workflows, this can leave glassware and tools better prepared for subsequent use and support cleaner handling. The result depends on appropriate material selection, adequate airflow, and proper containment during drying.