Simply disinfect Aerosoles with UV-C Led’s, conventional systems using mercury lamps operate at 254 nm.
254 nm is not the peak absorption wavelength of bacteria and viruses, but is a convenient line of mercury, therefore mercury is and was used in the past.
It was expected that the peak of 260 nm to 265 nm would be the most effective wavelength range of disinfection. However, due to the absorption of water, a wavelength range of 275nm to 280 nm proved to be the most effective for microbial disinfection in tap water and deionized water.
You can find here the UV-C-LED Source to build your own purification disinfection system.