Self-filtering, Kn95 Protection & Safety Mask with 5 Layers, Heat-sealed Finish. with Adjusting Straps & Adaptable Nose Clip for Tight Fit. Classified as Ppe (personal Protection Equipment), Equivalent to Ffp2 in Accordance to European Standard En 149:2001+a1:2009 & Certified in Accordance to Standard Gb2626. Minimum Filtering Efficiency = 95%. Disposable, Non-reusable Model. Minimum Quantity: 250.