Essentium's Improved Surgical Mask is a reusable 3D printed mask + a disposable filtration media approach. The masks we produce will ship initially with filtration media which is BFE 95-level certified, though we are currently in the queue at Nelson Labs for N95 certification. These masks are agnostic to the exact filtration media though the minimal level which Essentium intends is BFE 095 level media available from us or elsewhere.