Why is it not possible to test electronic air cleaners for loading using the ASHRAE 52.2 test?

Testing electronic air cleaners using the ASHRAE 52.2 test is not feasible due to the fact that carbon particles present in the dust can interfere with the operation of the electronic components within the cleaner. When carbon dust is introduced, it has the potential to cause short circuits in the electrical connections, which can compromise the functionality of the air cleaner during the testing process.

This challenges the integrity of any results obtained, as the presence of carbon can affect both the performance of the air cleaner and the reliability of the data collected. Therefore, the interaction between the electronic components and the carbon particles creates an obstacle that renders the ASHRAE 52.2 test unsuitable for accurately assessing electronic air cleaners.

Other options might suggest issues related to airflow disruptions or the complexity of electronic systems, but they do not accurately capture the essential reason why the ASHRAE 52.2 test is not applicable. The primary concern remains the risk of electrical shorts caused by carbon, making it crucial for appropriate testing methodologies to be developed specifically for electronic air cleaners, rather than relying on conventional filter testing standards.