Evaluation of the effectiveness of various pollution removal mechanisms of indoor air purifiers in removing suspended particles

Abstract

This study comprehensively investigated the efficacy of five distinct air purifiers in the removal of both particulate matter and gaseous pollutants. The analysis was conducted within a consistent test environment, employing a standardized benchmark to ensure accurate and comparable results. A rigorous methodology was devised to evaluate the efficiency of each air purification mechanism. The experimental setup involved placing the air purifiers inside a controlled test chamber, carefully designed to replicate typical indoor conditions. The focus of the analysis was on the removal efficiency of PM2.5, and the evaluation utilized the Clean Air Delivery Rate (CADR) values, measured in cubic feet per minute (ft³/min or CFM). Importantly, the study maintained uniform specifications, including unit filter area and unit electrostatic volume, to facilitate a fair and meaningful comparison of the removal efficiency for each purification mechanism. The CADR values served as a quantitative metric to assess the air purifiers’ effectiveness in removing PM2.5 particles. This standardized approach allowed for a direct comparison of their performance under identical conditions. By considering unit filter area and electrostatic volume, the study aimed to provide insights into the relative merits of each mechanism, enabling consumers to make informed decisions based on the specific removal capabilities of the air purifiers. In summary, the research established a robust methodology for evaluating air purifier performance, facilitating a thorough analysis of their effectiveness in removing particulate matter and gaseous pollutants within a controlled environment. The use of CADR values and standardized specifications ensures a reliable basis for comparing the efficiency of different air purification mechanisms.

Keywords

• particulate matter 2.5
• air purifier
• clean air delivery rate