5: Performance Features; Laminar Airflow - Labconco Logic Vue User Manual

5: Performance Features

The Logic Vue enclosure protects items placed on the work surface, the personnel
working with material inside the enclosure, and the lab environment, when operated to
manufacturer's specifications and proper aseptic techniques are employed.
This protection is provided through the use of laminar airflow, HEPA filtration, careful
TM
enclosure construction, and Constant Airflow Profile (CAP) ECM motors. Each of the
key performance features are detailed in this section.

Laminar Airflow

Laminar airflow is defined as the movement of a body of air in a single direction, with a
uniform velocity. In practice, the laminar downflow of air in the enclosure captures any
aerosol generated in the work area, and directs it to the HEPA filters. In order to be true
laminar downflow, a number of individual downflow velocity test points, commonly
referred to as the Downflow Velocity Profile, must be +/- 16 feet per minute (0.08 m/s) of
the average of all the test points. See Figure 5-1.
Figure 5-1
WORK
SURFACE
SLOTS
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