The use of filters to control air quality has been implemented widely in all forms of structures. Unfortunately, filters have a risk of becoming platforms for bacterial growth, which can then be dispersed further in the air stream. To combat this, antibacterial materials are being incorporated into filter media. In this work, we describe two routes of introducing nanoscale silver into filters containing activated carbon fibers (ACF): adding silver nanofibers straight into fiber fabrication process and coating the already fabricated filter with silver nanoparticles generated with liquid flame spray (LFS). The fabricated filters were tested for methanol adsorption, particle penetration and antibacterial activity. The results show that both of the routes are suitable ways of fabricating antibacterial filters, and are highly tailorable and scalable for specific needs.