What is a characteristic of electronic air cleaners?

Electronic air cleaners utilize electrostatically charged media as their primary mechanism for capturing airborne particles. This characteristic allows them to attract and trap particles such as dust, smoke, and pollen, effectively improving indoor air quality. The electrostatic charge enhances the dust-holding capacity of the filter, allowing it to capture smaller particles than standard mechanical filters might. This process means that electronic air cleaners can often achieve higher levels of filtration efficiency without needing significant increases in airflow.

In contrast, while some air cleaning options might require maintenance, it is not universally high for electronic models, making the first option less representative. The second option regarding operating at high temperatures mischaracterizes typical operating conditions for electronic air cleaners, which function effectively at regular room temperatures. Lastly, although mechanical mechanisms are essential in air filtration and some systems do incorporate them, describing electronic air cleaners as primarily mechanical does not reflect their fundamental operation, which relies more on electrostatic principles.