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
1:03
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Industrial rooftop air conditioner running in a loop
0:05
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Air conditioning vent running steady and coarsely
0:44
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factory steam vent (close perspective)
0:33
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factory vent from medium distance