0:42
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giant prop fans
0:04
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Extractor fan turned down
0:49
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Strong air conditioning ventilation unit
0:07
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Quiet noise of a fan cooler
0:39
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Household air conditioner running 2
0:25
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Industrial rooftop air conditioner running from a ground-level perspective
1:09
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Industrial rooftop air conditioner running in the medium distance distance
1:20
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Household air conditioner running in the distance
0:51
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Household air conditioner running 1
0:43
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Industrial rooftop air conditioner running in the distance