Vo, T., Le, L., Trần, Đăng, Phạm, A., & Nguyen, T. T. (2022). Design of powered air purifying respirator used for healthcare workers in isolation room. VNUHCM Journal of Engineering and Technology, 4(4), 1321-1331. https://doi.org/https://doi.org/10.32508/stdjet.v4i4.931