The invention relates to a fluid supply system for a nebulization system (1) for a motor vehicle, said supply system comprising: - a generator (72) of ultraviolet radiation capable of eliminating bacteria contained in said fluid, - a pump (40) for setting in motion the fluid, said pump being able to be supplied with electricity at a voltage (Up), called supply voltage of the pump, the supply system (40) being characterized in that the generator (72) is able to be supplied with electricity at a voltage (Ug), called the generator supply voltage, equal to the pump supply voltage (Up).
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