Auxiliary ventilation

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A method of supplementing the main ventilating current in a mine by using a small fan to draw air from the main current and force it through canvas or metal pipe to some particular place, such as the ends of drifts, crosscuts, raises, entries, or other workings driven in a mine. See also: air mover; exhaust ventilation; ventilation tubing; forced auxiliary ventilation; overlap auxiliary ventilation; piped air; reversible auxiliary ventilation; two-fan auxiliary ventilation. Lewis
Source: Dictionary of Mining, Mineral, and Related Terms

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