What is the main function of an air filtration system?

The primary function of an air filtration system is to remove contaminants and improve air quality. This is achieved by capturing pollutants such as dust, pollen, pet dander, smoke, mold spores, and various chemical particles that can otherwise circulate in the air. By effectively filtering out these harmful substances, air filtration systems contribute to a healthier indoor environment, which is essential for the well-being of occupants, especially those with allergies or respiratory issues.

In addition to health benefits, improving air quality can also enhance comfort within a space, reducing odors and creating a more pleasant atmosphere. This function is crucial in residential, commercial, and industrial settings where clean air is a high priority.

The remaining options address important aspects that air filtration systems can influence but are secondary to their primary role of contaminant removal. For instance, while improving energy efficiency in HVAC systems is an important benefit that arises from the proper functioning of an air filtration system (as clean filters allow systems to operate more effectively), this is not the main function. Similarly, while air filtration can contribute to comfort by potentially affecting temperature regulation indirectly, it does not directly regulate temperature itself nor does it increase humidity.