Product Name: Disposable 3-Ply Surgical Mask Origin: China Certification: NMPA, CE, FDA, ISO 13485 Executive Standard: YY 0469-2011 Type: Flat with ear loop Size: 17.5*9.5cm Sterile EO Level/Class: Type IIR or ASTM Level 3 Filtration Efficiency: BFE98 & PFE98 min. Packaging: 10 pieces packed in a vacuum paper-poly bag (individually packed for option) Supply Ability: 4~5 million pieces per day.