Working in a bar that has big problem with cigarette smoke accumulation.
The owner wants to put in an exhaust system to help minimize the smoke. Their thoughts are a large exhaust fan on a timer that cycles for less than 30 seconds every hour. I'm concerned about the humidity and negative building pressure problems that could occur but not sure I have a better idea. They have tried smoke eaters and air cleaners but its not really doing the job. I told her to just spray them out with a large water hose to keep it down at the source. She didn't like that idea...

Anyone had any experience with this and have any good ideas?