Traditional indoor air cleaning technologies are mostly equipped with fans and auxiliary components in addition to the core purification unit, and consequently use more energy in the building environment. To energy-efficiently improve indoor air quality, this paper presents a new approach to remove indoor airborne particulate matter. The approach couples the negative pressure effect over the point sink zone by considering the electrohydrodynamic flow generated in a high-voltage gas discharge process to augment the particle sink effect. This facilitates indoor airborne particulate matter to be collected and removed more quickly. We evaluated the influencing factors on the particulate matter removal proportion by laboratory scale experiments: the applied voltage, interelectrode distance, and porosity and shape of the collecting electrode, and compared the particulate matter control performance and energy efficiency of this approach with those of the existing studies. Results showed that the 30 %–40 % porosity of the collecting electrode and stronger electric field intensity had a clearer removal proportion of particulate matter. Moreover, the energy efficiency for 1–2.5 μm particulate matter of this approach (12.7 (m³/h)/W) was 2.3–7.9 times higher than that of the commercially available conventional air cleaners (1.6–5.6 (m³/h)/W). Compared to conventional particle sink purification technique, this approach could save at least 50 % of the sink running time to achieve a better particulate matter removal effect, and shorten approximately 50 % of the 1–2.5 μm particulate matter reverse mass transfer time. This study provides an important reference basis for improving indoor air quality and the creation of a more sustainable society.

传统的室内空气净化技术除了核心净化单元外，大多配备风扇和辅助部件，因此在建筑环境中消耗更多能源。为了高效节能地改善室内空气质量，本文提出了一种去除室内空气悬浮颗粒物的新方法。该方法通过考虑高压气体放电过程中产生的电流体动力流来耦合点汇区域上的负压效应，以增强粒子汇效应。这有助于更快地收集和去除室内空气中的颗粒物。我们通过实验室规模的实验评估了影响颗粒物去除比例的因素：外加电压、电极间距离、集电极的孔隙率和形状，并将这种方法的颗粒物控制性能和能源效率与现有研究进行了比较。结果表明，30%~40%的集电极孔隙率和更强的电场强度对颗粒物的去除比例更明显。此外，该方法对 1-2.5 μm 颗粒物的能效（12.7（m³ /h)/W)比市售的传统空气净化器(1.6-5.6 (m ³ /h)/W)高2.3-7.9倍。与传统的颗粒物汇净化技术相比，该方法可以节省至少50%的汇运行时间，达到更好的颗粒物去除效果，并缩短约50%的1-2.5μm颗粒物反向传质时间。该研究为改善室内空气质量和创建更可持续的社会提供了重要的参考依据。