Description: Bathroom 12v ventilation fan, slight rattle

Description: Bathroom 12v ventilation fan, some rattling of blades.

Description: Ventilation fan for public building. Recorded from close proximity. Deep whirring and thrumming of electric motor

Description: Bathroom ventilation fan recorded very close. Throbbing and humming electric motor

Description: Bathroom ventilation fan recorded very close. Throbbing and humming electric motor. Plastic blades and cover

Description: Bathroom ventilation fan recorded very close. Throbbing and humming electric motor

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