How To Use Laminar Flow Hood For Laboratory

A laminar flow hood is an important piece of equipment in the laboratory, hospitals, quality control department or even on the production floor in many industries. Laminar flow hoods provide a means of circulating filtered air through a small area in order to significantly reduce the chances of exposure to airborne contaminants. These hoods are used in applications where the air quality is of paramount importance, including in pharmacies, food production and preparation as well as in operating rooms.

The hood protects delicate materials and samples (particularly biological samples) from contamination by ensuring that the air circulated throughout the unit is nearly free of dust and other airborne materials. The air circulation systems in the hood provide ventilation in parallel planes, which remove airborne debris introduced into the working environment of the laminar flow hood by the operator.

The circulation of air in laminar flow hoods is also designed to prevent the entry of potentially contaminated air from outside of the hood from entering and adulterating samples and possibly damaging materials inside. As the hood is in use, air is forced from the rear of the hood in parallel planes to the work surface towards the front of the unit.

The air is dual-filtered before being circulated back into the air of the rest of the room, first by a pre-filter which removes larger particulate matter Such as large dust and dirt particles from the air, followed by a high capacity HEPA filter to produce air, which is clean enough to meet the standards applicable to the work environment using the laminar flow hood.

While laminar flow hoods are designed to provide an exceptional level of protection to the samples and other materials within the workspace from contamination, it should be noted that they are not designed to provide a significant level of protection to the operator. For this reason, operators should not work with any materials which could not safely be used on an open, hood less bench.

Any materials which are toxic or flammable enough that they would not be used without a hood should not be used with one of these hoods; a fume hood Or other safety equipment should be used in this case instead of the laminar flow hood. A general laboratory, clinic or other workplace where laminar flow hoods are used may be safe enough to breathe air, generally speaking; But for many manufacturing or research applications there are too many contaminants to be carried out without causing serious harm in the results.

These hoods usually depend on the purity of the air when running around the clock - if a hood is to be turned off, it must be operated for at least half an hour before use and thoroughly cleaned and disinfected. There are both vertical flow and horizontal flow models of laminar flow hood available, the different configurations being better suited for particular applications. Vertical flow models are more powerful, but not suitable for every use.

In the pharmaceutical research and development process, pharmaceutical production processes, medical care and research, life sciences laboratories and the manufacture of sensitive electronic components, laminar flow hoods are vital to ensuring the integrity of samples and products.

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