The COVID-19 pandemic has emphasized the importance of indoor air quality (IAQ) in public health, highlighting the crucial role of filtration technologies in maintaining healthy indoor environments. As the airborne transmission of pathogens became a primary concern, advanced filtration systems, particularly High-Efficiency Particulate Air (HEPA) filters and chemical filters, gained prominence for their effectiveness in removing ultrafine particles, biological contaminants, and volatile organic compounds (VOCs). This post-pandemic perspective provides detailed information on the capabilities of these filtration systems and their broader implications for indoor health management.

Filtration innovations target pathogen removal and address long-term IAQ challenges, such as reducing allergens, chemical pollutants, and indoor particulate matter (Pm1, PM2.5, PM10). These systems increasingly have smart sensors and AI-driven monitoring to ensure real-time filtration efficiency and energy optimization, supporting sustainable building operations. Furthermore, the pandemic has influenced the evolution of IAQ standards, with governing bodies calling for enhanced filtration and ventilation protocols in schools, offices, hospitals, and public spaces. By emphasizing health-driven building design focusing on the well-being of human occupants, filtration technologies have become central to reducing indoor pollution and mitigating the risks of airborne diseases. This presentation addresses how the pandemic has widened the air quality lens beyond particle capture to encompass bioaerosol filtration and ventilation technologies to sustainably provide clean and fresh air. The presentation also addresses shaping future urban and architectural frameworks, highlighting the role of filtration technologies as a common denominator for air quality governance strategies and public health and well-being.