Steam:
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Air compressor, air bleed, cylinder pressure
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Mask breathing
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Air is let through the regulator
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Air compressor operation
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Air pressure
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Oxygen balloon
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Small compressor blowing air
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Suction action of air
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A stream of air breaks out of a metal pipe
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Cut through the air with a gas burner
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Steam
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Blower, air broom
★★★★★