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Opponents of this function point out the possibility of increasing humidity in the cabin, which can lead to unpleasant odors and fogging of the windows.
How can you respond to these arguments? Any function can cause harm if used incorrectly. Do not keep the recirculation flap closed all the time, use the air conditioner regularly, clean and disinfect the ventilation system.
By taking these measures, you will be able to avoid the above-mentioned problems, and the recirculation function will make using your car as pleasant and comfortable as possible.