Analyzing numerical simulation of ventilation system and filter membrane: The exposure of airborne nanoparticles in health interior Space

Improving air quality in indoor areas or interior spaces is a vital need. High PM 2.5 concentration or excessive air pollution causes severe damage to human health and the respiratory system. Air ventilation systems in health spaces are more necessary as there is a higher human crowd flow in viral-susceptible areas. The recent COVID situation has made us rethink the re-arrangement of hospitals' interior space and air ventilation systems. For that reason, improving high-efficiency particulate air filters is the need of the hour. The main objective of this research is the optimization and redesign of the air filtration system in health centers by integrating a hybrid combination system of HEPA filters based on computer modeling and numerical simulation. To analyze the effectiveness of the hybrid system, first, we simulated the existing air filtration system by using a successful and proven air filtering computational model in COMSOL Multiphysics. After that, we generated comparative numerical results and graphical analysis obtained by COMSOL to demonstrate the competency of the hybrid system over the conventional air filtration system. Finally, we have shown the most optimum and effective way to implement the hybrid system in health centers by analyzing the Computational Fluid Dynamics of different types of opening and ventilation systems. This research will play an essential role in future interior air quality improvement and effective anti-viral design of health spaces.