Chávez-Ruiz M, Rueda-Torres L, Bellido-Achahui C, Madueño-Ventura F, Ruffner-Camargo B. Evaluation of the filtration efficiency of respiratory protective equipment against SARS-CoV-2. Rev Peru Med Exp Salud Publica [Internet]. 2021 Sep. 29 [cited 2024 Dec. 4];38(3):467-8. Available from: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/7564