Air conditioning, on, off:
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Fan blade rotation, air cut
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Humming fan, Computer turning on, off
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Clothes dryer
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Electronic melody for SMS alerts
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Portable fan
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Sewing machine
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SMS notification sound
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Off, on, Air conditioning
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Cool sound for notification
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Popcorn machine
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Air conditioning (outdoor unit)
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Faulty air conditioning, vibration noise
★★★★★