Return Air is essential, with most extraction

Return Air is essential, with most extraction

hvac

Here is a picture of return air ducts, when dust is extracted at rate it takes air rapidly from each machine with extraction, once the air is cleaned via filtration it is returned at a warmer temperature back in to the factory. via return air ducting usually square.

(the V in HVAC) is the process of exchanging or replacing air in any space to provide high indoor air quality, improving oxygen replenishment, and removal of moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and other gases. Ventilation removes unpleasant smells and excessive moisture, introduces outside air,

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