Would it be possible to drape plastic from ceiling to create a barrier for tank area? I would also try to pull in fresh air from outdoors. Possibly cover tank to keep particulates out. Run carbon.
Welcome! The event on Nov 12th is a great chance to meet people and find out more about the club, if you're able to attend. This club is smaller group of folks that are friendly and helpful. If you need something or have questions, ask away!