In a horizontal laminar flow hood, the laminar air flows towards the outside (i.e. towards the worker). There is hence no protection to the worker and it is not suitable for cytotoxic drug preparation.
In a vertical laminar flow hood, the laminar air flows downwards from the top, providing more protection for the workers. Vertical laminar flow hoods are hence suitable for preparing cytotoxic drugs.
Do you know the difference between a laminar flow hood and a biological safety cabinet? Laminar Flow Hoods * provide product protection only and must not be used when working with any form of biohazard or chemical hazard * any potentially infectious aerosol that is created will lead to exposure of the operator and the environment * horizontal-flow clean-air bench used for cell cultures can expose the researcher to aerosols of allergenic or infectious materials. * vertical-flow clean-air bench also blows air out into the roomBiological Safety Cabinets * provide personnel and environmental protection and commonly product protection * infectious agents must be used in a biological safety cabinet NOT a laminar flow hood
difference between laminar air flow & reverse laminar air flow
laminar flow Smooth, orderly movement of a fluid, in which there is no turbulence, and any given subcurrent moves more or less in parallel with any other nearby subcurrent. Laminar flow is common in viscous fluids, especially those moving at low velocities. Its used to avoid the spreading of fumes and gases when conducting an experiment resulting in a gaseous reaction.
A E. Whitney has written: 'The horizontal cylinder in laminar free connection'
Its used to avoid the spreading of fumes and gases when conducting an experiment resulting in a gaseous reaction.
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This question is its own answer. The flow patterns in laminar flow are laminar.
In laminar flow, easy to define the burning velocity, independent of the measuring apparatus within reasonable limits whereas not possible to turbulent flow.
Laminar Flow - album - was created in 1979.
Laminar flow is commonly characterized in terms of viscosity of fluid because of the nature of the phenomenon. Laminar flow typically describes how layers of fluid slide across each other without mixing. The air between the layers is the origin of the viscosity.
Yes, but the dividing line between those two states is not a sharp one.
Laminar flow can be defined by the help of Reynold's number that can be determined by conducting experiments. A Reynold number <=2000 indicates that the flow is laminar.