The performance of an air cleaner is evaluated by the clean air delivery rate (CADR), which is defined as the measure of the delivery of contaminant‐free air. Herein, we conducted comparative analyses of various particulate air filters with various collection efficiencies. We installed each filter in identical commercial air cleaners to determine the effects of the collection efficiency on the CADR. Three different filters (E11, E12, and H13 classes) were prepared to determine the effects of the filter collection efficiency and pressure drop on the air cleaner performance (ie, the CADR). Based on experimental data, filters E11 and E12 had similar CADRs and flow rates. However, filter H13, which had the highest collection efficiency and the lowest flow rate, had the lowest CADR. This indicates that even if a filter with higher collection efficiency is installed in an air cleaner, the larger pressure drop causes a reduction in the air flow rate. The CADR value is widely distributed for a flow rate range for commercially available models; however, the collection efficiencies for most air cleaners on the market lie in a narrow range. Therefore, the flow rate has the most direct impact on the performance of a commercial air cleaner.

中文翻译：

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过滤器收集效率对空气净化器清洁空气输送率的影响

空气净化器的性能通过清洁空气输送率 (CADR) 进行评估，CADR 被定义为无污染空气输送的量度。在此，我们对具有不同收集效率的各种微粒空气过滤器进行了比较分析。我们将每个过滤器安装在相同的商用空气净化器中，以确定收集效率对 CADR 的影响。准备了三种不同的过滤器（E11、E12 和 H13 类）来确定过滤器收集效率和压降对空气滤清器性能（即 CADR）的影响。根据实验数据，过滤器 E11 和 E12 具有相似的 CADR 和流速。然而，具有最高收集效率和最低流速的过滤器 H13 具有最低的 CADR。这表明，即使在空气净化器中安装了具有更高收集效率的过滤器，较大的压降也会导致空气流量减少。CADR 值广泛分布于市售型号的流量范围内；然而，市场上大多数空气净化器的收集效率都在一个狭窄的范围内。因此，流量对商用空气净化器的性能有最直接的影响。