The provided text outlines the regulatory standards for motor vehicle facilities according to the 2023 Florida Building and Mechanical Codes. It clarifies that a structure's classification as an open or enclosed parking garage is determined by its natural airflow and physical openings rather than mechanical specifications. While enclosed garages may utilise automated sensors for carbon monoxide and nitrogen dioxide to regulate ventilation, repair garages face more stringent requirements due to prolonged worker exposure. Although both facility types share a minimum exhaust rate, repair garages must implement source capture systems to directly remove fumes when engines run in a stationary position. Ultimately, the documentation highlights how occupancy patterns and specific vehicle uses dictate the distinct safety protocols required for different indoor environments.