TY - JOUR AU - Staymates, Matthew C2 - Physics of Fluids DA - 2020-11-10 05:11:00 LA - en PB - Physics of Fluids PY - 2020 TI - Flow visualization of an N95 respirator with and without an exhalation valve. UR - https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=931235 ER -