Construction, compressor discharges air:
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Air release with a loud whistling creak,
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Oxygen balloon
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The release of, The work of oxygen equipment
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Blower, air broom
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Air is let through the regulator
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Mask breathing
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Helium balloon
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Cylinder pressure, air bleed, Air compressor
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Air is bleeding through a hose
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Compressor discharges air, Construction
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Steam
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Balloon descent
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