The work of oxygen equipment, the release of oxygen:
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The release of, The work of oxygen equipment
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Steam
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Truck Air Brakes
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Air is let through the regulator
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Mask breathing
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Air pressure
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Air bleed, Air compressor, cylinder pressure
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Air broom, Blower
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Air is bleeding through a hose
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Air is blown through a glass tube
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Air release with a loud whistling creak,
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Inflating a mattress
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