![]() Horizontal laminar flow hoods direct air, well, horizontally. vertical laminar flow hoods and help you determine which is best for your application. This article will discuss the differences between horizontal vs. Both designs provide an effective sweeping action through the work zone and meet ISO Class 5 cleanliness standards, so your application will help determine which is better for your facility. Flow hoods come in two configurations: horizontal and vertical. Filtered air sweeps particles in a uniform speed and direction from the hood’s most treated area (the filter) to its exit area.Ĭleanroom airflow uniformity and laminar flow hoods are essential to ensuring that sensitive products placed under the hood are always upstream and therefore suffer little to no contamination. But it’s much easier to achieve laminar flow in a smaller space, as equipment, personnel, and movement in a room cause turbulence that disturbs airflow.Ī laminar flow hood is a device or enclosure commonly used as an ultra-clean workbench in laboratory applications. Because of the 100% filter coverage, it creates an ultra-clean environment. In cleanrooms, a vertical laminar flow room is an enclosure where 100% of the ceiling provides filtered air downwards from the ceiling. Laminar air flow is air flow that constantly moves at the same speed in the same direction.
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