5-100 NEOMED KF94 Features: FDA Registered | GB/T 32610-2016 Standard Free Same-Day Shipping (Continental US, HI, PR & GU only)* Super-flexible Nose Bridge (metal strip) woven between layers (not on the outside). Ear-loops are flat, not round. Masks are individually packaged as shown in images. 4-layers filters out over 94% PFE & BFE. We sell to Government Agencies & Healthcare Institutions. Made in S. Korea *Orders ship same business day if placed before 12 PM PST  For quick delivery to PR, HI & GU we highly recommend the optional expedited shipping options at checkout.