[FFP2 KLT11] WITH valve, flodable 1. Headband, good elasticity cotton headband. 2. Flat-fold. 3. Internal sponge nose pad design. 4. Filter material, high-efficiency, free and smooth breathing. 5. Fit face shape. 6. Disposable, soft, comfortable. 7. Application: construction, hardware, glass, cement, mining, textile, polishing, pharmaceutical and etc... 8. Auto Manufactured. [standard: EN149:2001 + A1:2009 FFP2 NR] material: 4 layers, outer layer 70g/m2 non woven fabric, middle 2 layer 30g/m2 Melt-blown fabric inner layer 50g/m2 non woven fabric [carton size: 72x37x44CM 30 pieces/ box 300 pieces/ carton G.W.: 5.2 KGS] [OEM orders & ODM orders are welcome.] CE certificate & test report. White list in China Commercial Bureau. Filtrate bacteria >=95%