With the increasing awareness of the air quality and its effects on human health, consumers want products that can help reducing air pollution and improving indoor air quality. More and more advanced air filters have been developed to improve air filtration without increasing the energy consumption. Filter testing methods and standards, e.g. ASHRAE 52.2, have been developed to measure and predict the initial and end of life (EOL) filter efficiency and pressure drop performance. However, these test methods/standards are based mostly on studies of commercial HVAC filtration applications, not necessarily suitable for predicting the EOL of air filters in residential HVAC applications.
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