Made from 3 layers of fluid-resistant non-woven fabric for better bacteria filtration and air permeability. The masks are heat-sealed providing clean, sealed edges.
• Filtration efficiency: 90% (Protect against large fluid droplets, dusts, air pollutants)
• 3 layers: Non-woven fabric (60%), melt-blown fabrics (40%)
• Size: 6.93" x 3.66" (176 mm x 93 mm)
• Box quantity: 50 pcs
*Please note we import our masks from multiple qualified sources. Size and color may slightly be different. All product specification matched with the description we stated and meeting the industry standard.