High Velocity Outlet

The High Velocity Outlet looks like a box with a perforated face, but inside it contains a HEPA filter. This filter traps 99.97% or more of particles down to 0.3 microns in size. Air from the duct passes through this final filter just before entering the room. Nothing downstream can introduce contamination after this point. The box also includes a plenum to distribute air evenly across the entire filter face, ensuring all the media is used effectively.

The high velocity outlet is installed when very clean air is needed for sensitive work. The filter prevents dust, bacteria, and other tiny particles from entering the space. The outlet sends air out in a smooth, uniform pattern, pushing contaminated air away from critical zones and keeping surfaces clean. The unit also helps control room pressure. By balancing supply air, it keeps cleanrooms positive relative to hallway air so dirt does not seep in. In labs handling dangerous materials, it can maintain negative pressure so nothing leaks out.

You will find the high velocity outlet in semiconductor factories, where a single dust particle can ruin a chip. Hospitals use it in operating rooms to ensure patient safety during surgery. Pharmaceutical companies install it in sterile filling lines to keep medicines pure. Biological labs handling viruses or DNA research depend on it to protect both scientists and samples. Food processing plants use it in sterile packaging areas to extend product shelf life. Any room with a cleanroom classification from Class 100 to Class 100,000 uses this vent as the final air delivery point.

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