Dirty coils and ductwork allow for reduced airflow, decreasing your HVAC system's efficiency and capacity. That's where fiberglass air filters come into place. Fiberglass air filters are some of the most commonly used filters around the globe to filter out impurities from your HVAC system. These air filters are engineered for sturdy, economical performance and ease of use. These filters are composed of spun glass fibers with a high porosity that captures large particles from your home's air and typically come with a MERV rating between 1 and 4. The most significant advantage of using fiberglass air filters is that they are inexpensive compared to more advanced filters. At DK Hardware, you can find a range of fiberglass air filters in different sizes that can be useful for various commercial and industrial purposes that are sure to get your job done right.