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Standards for Building Ventilation

Heating ventilation and air conditioning system is designed to keep occupants comfortable and healthy by controlling the amount of outside air that is added to the building atmosphere, filtering both incoming and recirculated air to remove heat.

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Industrial ventilation Systems

Type HC Power Roof Ventilators have been tested to operate: - conituously at 650 F; - 3 Hours at 800 F; - 1.5 Hours at 1000 F; - 1/2 Hour at 1,200 F.

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