I would love to not worry about my neighbors... but unfortunately, living in a city environment on a 1/8 acre corner lot... with my workshop almost butting up to my neighbors bedroom...lol... I had to get rid of my CNC Router because of the noise and smoke smell when running a 3 hour job... I think he might be upset at me for not scrubbing the smoke.... He is a funny person... so I can only imagine his cuban rantings if i vent out directly...
Rather safe than sorry...
I think this air scrubber for under $200 is the bees knees and would be the perfect MacGuyver Project to keep the peace...