What is the total airflow capacity when combining one Model A and one Model B exhaust fan?

To determine the total airflow capacity when combining one Model A and one Model B exhaust fan, it is essential to first know the individual capacities of each model. Assuming that Model A has a capacity of 4,000 CFM and Model B has a capacity of 4,200 CFM, the total airflow can be calculated by simply adding the capacities of the two fans together.

When you add these two figures:

4,000 CFM (from Model A) + 4,200 CFM (from Model B) = 8,200 CFM.

This calculation confirms that the total airflow capacity when combining both fans is indeed 8,200 CFM, making it the correct answer. Understanding how to combine the airflow capacities of different models is crucial for design and efficiency in ventilation systems, ensuring that the combined airflow meets the requirements of the space effectively.