I imagine the alcohol concentration in the air is extremely low, making this quite hard work. The article mentions "ethanol-capturing equipment used by brandy

I imagine the alcohol concentration in the air is extremely low, making this quite hard work. The article mentions "ethanol-capturing equipment used by brandy distilleries in California", but i couldn't find anything about capturing emissions from ageing. There are a couple of systems for capturing alcohol emissions from fermentation, but that's a different problem: https://www.aromatica.io/process https://www.aromatica.io/process http://nomovo.com/ http://nomovo.com/