Can ethyl alcohol fumes be suppressed by a household air purifier/filter?
No home air purifier removes alcohol vapor from the air. There are a number of ways it can be eliminated, though, depending on quantity, purity and other factors.

Bakeries have to comply with clean air standards for VOC (volatile organic compounds), primarily ethanol, which can cause smog. One way the alcohol is removed is by catalytic oxidation, similar to the way an automobile catalytic converter works. Even hot copper is sufficient to oxidize alcohol.

Another way to remove ethanol is by condensation, which allows the alcohol to be saved for resale, or by washing (scrubbing) the oven gases with water.

Sadly, though this regulation of ethanol emission is necessary, it also removes the sublime aroma of baking bread from the vicinity. sigh...