Exhaust rate in retail units.

Please elaborate on the function of "retail units". What is this volume being used for? What equipment is installed there? How is it seperated from the other spaces (ceiling, walls, floor, door, etc.)

Train stations are difficult to certify. It's better suited to LEED CI. Sometimes there are cabins on the platform that even do baking, but the platforms are directly connected to outdoors and therefor outside the thermal boundry. These small cubicals never have vesitbules, which I think are strictly required, unless there is an exception for such small volumes? The service counter is open anyway, which is self defeating. The fatty exhaust fumes are simply expelled onto the platform.,,which is technically outdoors (I hate them...always terrible air here...thankfully I'm only there for short periods, but the poor people working there are not in a good place). Very modern trainstations have vestibules at the main enterances, so you could redefine the thermal boundry to house the platforms, then at least all the retail don't need 'em cause they're already inside, but then these cabins may be problematic. I'd love to hear how others are solving this.