Filter Performance Rating (FPR) is a system used to evaluate the efficiency of air filters. It assesses a filter’s ability to capture airborne particles of various sizes. For example, a filter with a higher FPR can trap a greater percentage of smaller particles, such as dust, pollen, and pet dander, compared to a filter with a lower rating.
The significance of this rating lies in its ability to provide consumers with a clear and objective measure of filter effectiveness. By understanding the rating, individuals can make informed decisions about selecting filters that best meet their specific needs and indoor air quality requirements. Historically, different rating systems existed, leading to confusion. FPR provides a standardized approach.