* Premium Quality * Origin: China * Certification: CE (NB 2834) * Standard: EN149:2001+A1:2009 * Model: 8228V-2 * Type: Cup style with head bands/straps * Level: FFP2 NR * Filtration Efficiency: BFE95 * Non-Sterile * Packaging: 20pcs packed in a color box * Structures: 1st layer: 45g non-woven fabrics; 2nd layer: 45g FFP2 filters; 3rd layer: 220g acpuncture cotton.
