What role do air filters play in HVAC systems?

What role do air filters play in HVAC systems?

• A. They increase air pressure
• B. They remove dust and allergens from the air
• C. They add humidity to the air
• D. They facilitate air circulation

Answer: (B)

Air filters are a crucial component of HVAC systems primarily due to their role in improving indoor air quality. They are designed to trap and remove dust, pollen, pet dander, mold spores, and various allergens from the air as it circulates through the system. This function is important not only for the health and comfort of the occupants but also for maintaining the efficiency and longevity of the HVAC system itself. While cleaning the air, filters prevent the buildup of debris on internal components like the evaporator coils, allowing the system to operate more efficiently. This results in better air circulation and heating or cooling performance. Air filters do not increase air pressure, add humidity, or facilitate air circulation directly but rather contribute to these processes by keeping the air free from contaminants that could hinder system efficiency.

Air filters are a crucial component of HVAC systems primarily due to their role in improving indoor air quality. They are designed to trap and remove dust, pollen, pet dander, mold spores, and various allergens from the air as it circulates through the system. This function is important not only for the health and comfort of the occupants but also for maintaining the efficiency and longevity of the HVAC system itself.

While cleaning the air, filters prevent the buildup of debris on internal components like the evaporator coils, allowing the system to operate more efficiently. This results in better air circulation and heating or cooling performance. Air filters do not increase air pressure, add humidity, or facilitate air circulation directly but rather contribute to these processes by keeping the air free from contaminants that could hinder system efficiency.