能源成本和使用已成为全球关注的问题。ASHRAE引入了能效和健康室内环境的可持续性目标。我们应该如何为暖通空调系统中的空气过滤提供这样的可持续性承诺？终端用户和过滤器制造商对空气过滤器的分类要求越来越高，不仅要根据颗粒物去除效率，还要根据能源效率。目前，所有过滤器仅根据颗粒物去除效率进行分类，而ASHRAE 52.2-2007或EN779:2002等现有标准均未涉及能效问题。本文介绍了两种对过滤器能效进行分类的方法:关键能源性能（kep）数和瓦数。 四种不同的模型用于计算平均压降与粉尘负荷的关系，因为它是能源效率的关键变量。本研究提出的一个新的指数模型与ASHRAE 52.2全试验粉尘加载过程中的压降实验数据具有良好的一致性。单位:双引文:ASHRAE交易，第115卷，第。2、路易斯维尔2009

Energy cost and use have become a global concern. ASHRAE has introduced sustainability goals for energy efficiency and healthy indoor environments. How should we deliver such sustainability promises to air filtration in HVAC systems? There is a growing demand from end users and filter manufactures to classify the air filters not only by particulate removal efficiency, but also by energy efficiency. Currently, all the filters are classified only by particulate removal efficiency and none of existing standards such as ASHRAE 52.2-2007 or EN779:2002 addresses the issue of energy efficiency. In this paper, two methods are introduced to classify the filter energy efficiency: key energy performance (kep) number and wattage. Four different models were applied to calculate the average pressure drop vs. dust loading as it is a critical variable to the energy efficiency. A new exponential model proposed in this research showed excellent consistency to experimental data of pressure drop during the dust loading process of ASHRAE 52.2 full test.Units: Dual