The Laminar Flow Units for operation rooms are used for providing the required laminar flow above the operation desk and to prevent bacteria and other particles entering in the patient zone.
The sizing of the units are determined so that the outcome face velocity of air is between 0.2-0.3 m/s. The primary reason for this, is that above 0.3 m/s velocity, the operators are disturbed and below 0.2 m/s, irregularities within the laminar flow occur. There is a laminizer at the bottom face of the unit, which is made of stretched silk. The laminizer is a multi-piece part that permits connection of the pendent lamp. Connection ends for manometers are provided on the filter housings to permit connection of manometers so that filter dirtiness can be measured. There are also lightings provided within the plenum.
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