Ventilation for indoor smoking

[AAlmeter]

As the essential items of my home renovation (such as a functioning bathroom) are wrapping up, I'm moving on towards the ones that are a little more fun.

Half of the basement will be turned into a bar-type area. Pergo floors (in case of flood), paneled walls, bar, tap, etc.

I'd like to also provide some sort of ventilation for this area so smoking won't be a problem. I can easily run ductwork outside, as I'll be putting on new siding once the weather breaks.

I'm looking for some input on sourcing and sizing ventilation equipment. Likely looking at somewhere in the neighborhood of 400 sqft (2800cuft of air).