Improving Hospital Air Quality With a Nano‐Ag/Chitosan‐TiO ₂ Filter System and Cloud‐Based Monitoring

Improving indoor air quality (IAQ) in hospital environments protects vulnerable patients and healthcare professionals from airborne pollutants and pathogens. This study integrates three interconnected components: a comprehensive analysis of hospital IAQ, an evaluation of a nanosilver/chitosan–titanium dioxide (nano‐Ag/CS‐TiO 2 ) filter, and an assessment of real‐time monitoring using a cloud‐based platform. The nano‐Ag/CS‐TiO 2 filter demonstrated enhanced efficiency in reducing a broad spectrum of pollutants, including particulate matter (PM 2.5 and PM 10 ), carbon monoxide, carbon dioxide, volatile organic compounds (VOCs), and microbial aerosols. Measurements were conducted across different hospital zones and timeframes to reflect typical hospital operations and assess the adaptability of the proposed solutions. The study further addresses the long‐term use of nano‐Ag/CS‐TiO 2 and underscores its advantages over existing filtration methods. Cloud‐based monitoring provides real‐time data, allowing for timely intervention for IAQ, particularly in high‐risk areas like negative pressure isolation rooms. The finding in a negative pressure isolation room demonstrated significant improvement in IAQ postinstallation of the nano‐Ag/CS‐TiO 2 filtration system. The integration of nano‐Ag/CS‐TiO 2 filtration and real‐time monitoring supports compliance with World Health Organization (WHO) IAQ standards. These findings highlight the potential for broader application in various healthcare settings, such as outpatient clinics and emergency departments. The study also ensures accuracy in pollutant detection, addressing the potential for false positives and negatives in cloud‐based monitoring. This study highlights that a nano‐Ag/CS‐TiO 2 filtration system can enhance IAQ in hospital settings by effectively removing air pollutants and inactivating airborne pathogens. This approach facilitates the development of evidence‐based strategies for promoting healthier indoor environments in hospitals.