Laminar Flow Benches


A Laminar flow benches or Laminar flow benches or tissue culture hood may be a carefully sealed bench designed to prevent semiconductor wafers, biological samples, or other materials that are sensitive to particles from being contaminated. A HEPA (High Performance Particulates Air) filter eliminates all airborne contamination in order to preserve sterile conditions.

A laminar flow hood consists of a filter pad, a fan and a HEPA (High Efficiency Particulates Air) filter. Via the filter pad where dust is trapped, the fan sucks the air. After that, the pre-filtered air must pass through the HEPA filter where contaminating spores, bacteria, dust, etc. are removed.


Laminar Flow Cabinets are ideal for a range of applications where smaller products, such as particle-sensitive electronic devices, need a particular clean air environment. For specialized work, Laminar Flow Cabinets are widely used and demanded in the laboratory. Laminar Flow Cabinets can be tailored for general laboratory work, especially in the medical, pharmaceutical, electronic and industrial sectors, to the unique requirements of the laboratory.

Laminar flow cabinets are typically made of stainless steel with no holes or joints, or laminar air flow cabinets, as they are often called, thereby preventing bacteria from accumulating anywhere in the working region. Laminar Flow Cabinets are often related to as clean benches since this air is thoroughly filtered for the working environment through the accurate filtration process.


Laminar Flow Cabinets can be manufactured as both horizontal and vertical cabinets. There are several different types of cabinets for various purposes with a range of airflow patterns

Vertical Laminar Flow Cabinets.
Horizontal Laminar Flow Cabinets.
Laminar Flow Cabinets and Hoods.
Laminar Flow Benches and Booths.

The direction of air flow coming from above then changes direction and is processed in a horizontal direction through the job.

The continuous flow of filtered air provides material and product safety.
The air can escape the working area through holes in the floor, and vertical flow cabinets can provide greater operator safety, as well as horizontal laminar flow cabinets and laminar air guided vertically downwards to the working area.
Essential criteria to ensure that the hood works effectively: all airborne materials must be filtered by the HEPA filter, and the air speed in the working area must be around 0.5 m/s.
You should perform the following acts before you begin flashing in your laminar flow hood. Turn the blower on and use an alcohol soaked piece of kitchen paper to clean out the sterile area. Let the blower run for 30 minutes on a continuous basis.
Once this time has passed, clean an alcohol-soaked piece of kitchen paper out of the sterile area.


A laminar flow cabinet is described as an enclosed workbench that is used by mounted HEPA filters that catch all the particles entering the cabinet to create a contamination-free work environment.

Desktop laminar flow chambers, also referred to as laminar flow clean benches, are similar to bio safety cabinets in the sense that they are machines used in a filtration process to fully clean up the ambient air. Laminar air flow is typically intended to prevent semi-conductor wafer contamination, some sensitive materials and even some of biological samples.