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When Gael is asking how to shut off the ventilation unit, Mr Phillips tells Gael that the control panel is on his left. Gael, however, turns to his right and the control panel is there.

Violating the real-time formula, the hotel manager is in his office and his assistant tells him that there's people with guns outside. Then the next scene seconds later has the assistant in the basement trying to find a way out.

Jack mentioned that the doors and windows in the hotel don't open so the contaminated air would stay inside the hotel. Michelle and Gael also made mention that the air in the hotel is contaminated, meaning that the virus is airborne, in which case when Danny (the angry guest) smashes the front glass to try and get out. Wouldn't the virus become airborne throughout the city and start infecting people that way?