CHAPTER 7: HEATING, VENTILATION, AIR CONDITIONING (HVAC)
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Duct Silencers Data Sheet - ENoiseControl
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Johns Manville Air Handling Fact Sheet - Insulating Air Ducts
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ASHRAE JOURNAL Understanding The P Roblem Noise In The Classroom
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Noise Control - Wikipedia
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Duct (flow) - Wikipedia
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Airflow Is Critical To HVAC System Performance
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