Research on Microbial Aerosol Control Device Based on Electromagnetic Field Theory

Abstract

Pathogenic microbial aerosols pose a significant threat to human health. It is essential to quickly and effectively disinfect the air to prevent the spread of pathogens, enhance public health, and guarantee health and safety. Electromagnetic disinfection is a new type of disinfection technology, which has been proven to inactivate various bacteria, viruses, and other microorganisms, and has the advantages of high efficiency and environmental protection. This study proposed an electromagnetic disinfection-based method for microbial aerosol disinfection. Electromagnetic field theory was used to establish the cavity's starting size, and electromagnetic simulation software was used to model and simulate the cavity. Then, a cavity system was established and disinfection experiments were conducted on indoor air and high-concentration microbial aerosols. The results show that when sterilizing indoor natural air, using an electromagnetic field with a frequency of 2450 MHz and a power of 200 W for 70 seconds can kill 93% of the bacteria in the air. In high-concentration aerosol disinfection experiments, the disinfection effect can be significantly improved as the power and action time increases. Most microorganisms can be removed when the electromagnetic field power is 200 W and the action time is 2 minutes. These results indicate that electromagnetic disinfection devices can effectively eliminate microorganisms in aerosols and provide a new method for controlling disease epidemics.