Exclusive protection of the experiment

The laminar airflow was invented to avoid microbial contamination during biological experiments or protection against particulate pollution.

A laminar flow hood generates a purified particulate air (hood shown equipped with a HEPA filter arresting 99.99% of particles larger than 0.3 µm) and most importantly, without aerodynamic disturbances.
Horizontal laminar flow - BBS 1000 H

A flow is laminar, if at each point of the section of the stream, the speed does not differ from the average speed of the flow by +/-20%.
A laminar flow is unidirectional and homogeneous.

In these enclosures, treated air is ’blown’ towards the operator. This procedure protects the experiment but not the operator nor the contaminants’ environment.