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Annexair's hood concept was developed to prevent accumulation of dust and air pollutants in the intake air zone, just ahead of the OA filters. Annexair's solution was to integrate the filters into the hood, so the interior of the unit and the OA dampers remain clean, for improved air quality and smooth damper operation. An additional advantage of placing the filters in the hood is restricting the maximum intake air velocity to 500 ft/min, preventing rain or snow from entering the unit. Hinged louvers allow access to the external filters. A unique slide up filter rack allows easy filter replacement. |