Is it permissible to use a mouth freshener (spray) during the daytime in Ramadan to remove odor?

Using a miswak is sufficient to avoid needing to use an oral spray while fasting. If an oral spray is used and nothing reaches the throat, then there is no harm in it. The odor of a fasting person's mouth should not be disliked, as it is a result of an act of obedience, and "the odor of the fasting person’s mouth is sweeter to Allah than the scent of musk."