A face mask is an essential personal filtration device that blocks the entry of airborne bacterial and viral pathogens into the respiratory system. The efficacy of face masks is based on filtration efficiency due to their tightly bound fibers that trap particles. However, these fibers are non-conducting polymers that generate an electrostatic field that traps nanoparticles. Understanding the inherent behavior of nanoparticles in an electrostatic field is essential in the selection of a more filtration-effective face mask. COMSOL Multiphysics was used to simulate the particle behavior using physical parameters gathered from five commercially available low-cost face masks. The electrical and physical properties of SARS-CoV-2 were used as a basis for simulated virus-like nanoparticles. The study demonstrated that a combination of a stronger negative electrostatic field and a larger fiber diameter has shown influence in trapping nanoparticles. Furthermore, an electrostatic potential with an opposite charge was generated at the back portion of the fiber layers due to electrostatic field induction. This opposing charge field generated a repulsive force which caused the nanoparticles to deflect away from the fibers.