Key legal question
Whether the ground-floor bar could qualify as a permitted Nebenraum/Fumoir under cantonal passivrauch protection rules.
Extracted holding
No. The bar was not a mere side room because it was the main serving room and was perceived from outside as the only operating room.
Extracted reasoning
Under the smoke-free regime, smoking rooms are exceptions. The room's outward appearance and central position were relevant to the main-versus-side-room distinction; the authorities' interpretation was not arbitrary.