· High quality Melt-blown non-woven fabrics with the Particulate filtration efficiency of non-oil particles above 95% (Civilian Class-II).
· Multi-layer folding surface design, large effective area, high filtration efficiency.
· Multi-layer folding surface design, large effective area, high filtration efficiency.
· Universal designed ear loop, easy to wear.
· Breathing resistance is less than 49Pa, small ventilation resistance, comfortable wearing, and can be worn for a long time.