For laboratory and pharmaceutical
purposes, a laminar flow hood is a kind of air-filtering
device that offers a sterile working environment. A laminar flow hood's main
job is to keep samples and tools clean while performing procedures that call
for a sterile environment. We will go through the operation, varieties, uses,
and upkeep of a laminar flow hood in this presentation.
Working theory:
The idea of a laminar flow hood is to provide a clean, even airflow over a work area. HEPA
(High-Efficiency Particulate Air) filters, which eliminate any airborne
impurities bigger than 0.3 microns, are used to pull air into the hood. The
filtered air is then supplied to the workplace in a laminar or unidirectional
flow after passing via several ducts. This indicates that the air flows
normally from the top of the hood down to the work surface in a straight line
with a steady velocity and direction. The samples and equipment are kept clean
by this flow, which guarantees that any particles or germs created by the job
are moved far from the operator and the workstation.
- Vertical and horizontal laminar flow hoods are the two basic
varieties. The type of hood to use will depend on the application and the
type of work being done.
- Hood with the vertical laminar flow: A hood with a vertical laminar flow is made to create an
airflow that is laminar downward. In scientific and medical applications
including tissue culture, cell culture, and microbiology, this kind of
hood is frequently utilized. The workplace is reached by a front aperture,
and the operator works while standing outside the hood.
- Hood with a horizontal laminar flow: A hood with a horizontal laminar flow is made to allow air to
flow laminarly from the rear to the front. Electronics, optical, and
semiconductor manufacturing sectors frequently employ this kind of hood.
Inside the hood, the operator occupies a sitting posture, and a side
aperture provides access to the workplace.
In many laboratory and
pharmaceutical applications, a laminar flow hood is a crucial
instrument for ensuring a sterile work environment. They come in two primary
varieties: vertical and horizontal, both of which work on the premise of
distributing a consistent and sterile airflow throughout a workstation. To
guarantee the hood's efficiency and avoid contaminating samples or equipment,
proper upkeep, and testing are required.
