- 95% filtration efficiency against solid particles. - Embedded Nose Bridge. - Inner Nose Foam. - Welded Straps. - Ultra Light. - Low Breathing Resistance. - Four Layer Protection. - Straps: Head Straps. - Strap Style Welded. - Color: white. Carton contains: - 12 boxes each 50 pcs / box. **For further product information, please contact Chat Support**