Structural analysis of antiviral N95 filtering facepiece respirator VESTA

Resumo

The pandemic caused by the coronavirus (SARS-CoV-2), which causes the disease COVID-19, forced
health authorities and research institutes to propose solutions. An important and accessible tool to fight against the
virus the use of masks. The VESTA respirator's designed product is the new antiviral N95 filtering facepiece
respirator developed by the researcher team from the University of Brasilia. The facepiece mask is composed of
three layers of non-woven that can retain up to 95% of solid, liquid, oily and aerosol particles besides inactivating
the virus. The Vesta differential is the chitosan nanofilm, present in the intermediate layer, that works as a physical

barrier for the virus. The nanofilm has antimicrobial action and greater ability to filter viruses, including the SARS-
CoV-2 that causes COVID-19 and prevent infectious diseases with self-cleaning protection and drug delivery

properties. This paper aims to perform structural simulations like tension, deformation, and vibration analysis on
the respirator VESTA. It demonstrates the mechanical characteristic of the designed mask and certifies its
resistance under the certain application. The numerical simulations were performed in the commercial finite
element software ANSYS.