ASANAVIJIT, V. .; INTRA, P. . An Automated Filter Tester Based on an Electrostatic Particle Counter for Testing the Particle Filtration Efficiency of Surgical Masks and N95 Masks . Engineering and Technology Horizons , [S. l.], v. 39, n. 3, p. 147–166, 2022. Disponível em: https://ph01.tci-thaijo.org/index.php/lej/article/view/247363. Acesso em: 3 may. 2024.