Efficacy and Efficiency of an Atmospheric Pressure Dielectric Barrier Discharge Reactor (GAPS) for Air Disinfection

Airborne transmission of pathogens has emerged as a critical challenge in indoor environments, prompting the development of advanced air‐sanitization technologies. Among these, nonthermal plasma has shown promising antimicrobial effects. In this study, we evaluated the biological efficacy and energy efficiency per order (EEO) of the Grid‐like Air Plasma Sanitiser (GAPS) reactor. Experiments were conducted with Escherichia coli MG1655 bioaerosols. The GAPS achieved a reduction up to in a single pass, confirming its strong bactericidal effect. The corresponding EEO was , highlighting the reactor competitive efficiency compared with conventional methods. Preliminary assays with SARS‐CoV‐2 bioaerosols were carried out too showing a reduction of , further supporting the reactor's potential for viral inactivation.