Final answer:
Ventilation is the most effective engineering control for removing contaminants from a confined space.
Step-by-step explanation:
The engineering control that is most effective for removing contaminants from a confined space is ventilation. Ventilation involves the use of equipment such as fans and exhaust systems to circulate fresh air and remove air pollutants or toxins. This helps in maintaining a safe and healthy environment by reducing the concentration of harmful substances in the confined space.
Learn more about Engineering controls for removing contaminants from confined spaces