Exhaust fan:
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Air cut, Fan blade rotation
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Off, on, Air conditioning
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Electric wheelchair
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Whatsapp notification sound
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Air conditioning (outdoor unit)
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Off, Old tv on
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Cool sound for notification
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An electric toothbrush
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Faulty air conditioning, vibration noise
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Defrost process, Spaceship freezer
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Popcorn machine
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Off, humming fan, Computer turning on
★★★★★