How does improper make-up air affect vent performance and energy use?

How does improper make-up air affect vent performance and energy use?

• A. It has no effect on performance or energy use
• B. It can cause negative pressure, reduce capture efficiency, lead to leaks, and increase energy consumption due to uncontrolled infiltration
• C. It always improves energy efficiency
• D. It only affects comfort and has no impact on efficiency

Answer: (B)