What does “air filtration” accomplish in HVAC systems?

The process of air filtration in HVAC systems primarily improves indoor air quality by removing particulate matter from the air. Air filters are designed to trap dust, pollen, mold spores, pet dander, and other airborne particles that can negatively impact health and comfort. By continuously filtering the air that circulates through the heating and cooling systems, the equipment helps maintain a cleaner and healthier environment.

Effective air filtration is essential, especially in residential and commercial settings where allergens and pollutants can accumulate. The improved air quality results not only in better health outcomes for occupants, particularly those with respiratory issues, but also enhances the overall comfort within the space.

In contrast, other options address functions not directly related to the purpose of air filtration. Humidity regulation involves the use of humidifiers or dehumidifiers, temperature lowering is managed through the cooling operation of the system, and air pressure management is a different function that usually pertains to duct design and fan operation. Thus, the primary role of air filtration in HVAC systems is accurately reflected in the correct choice.