Best room for ventilation for 7-8 ASIC miners - any ideas?

Hi,
I’ve been mining for almost a year, and want to expand.

I have a commercial building in NC that is in an industrial zone.
The rates average down to 7 cents a kwh, if I use anywhere form 18000kwh.month to almost 30000kwh a month.

If I plan to section off an area in the building for 7-8 miners (ASIC, probably L7s)

What is the best way that has be proven to vent the heat out and bring cool in the most efficently?

Does anyone have a plan for this. I know you need to vent the heat out, but is there a size room that’s best, and where to put air filters, air conditioning during hot days, etc?

I have the option of putting it against an outside wall to vent out, or vent upward out the roof…
Current ceiling height is around 11ft tall. I can build and insulate however is needed.

Any suggestions? thanks

Place them on the exterior wall so you can direct vent out. Ac is not practical. Filtering the incoming air is a must IMO. Building a room to house them and control the noise is best.