3 LAYERS (Material & Protections) : The face mask is made up of 2 Layers of spunbund polyproplene (SBPP) & 1 layer of Melt-blown PP which has soft layers that prevents skin irritation or allergy problems. The Ear loop material is made from the Latex free round elastic at 7.5 inches which elongates with a ratio 1:2 making it easy to wear and remove with comfort. The malleable nose wire keeps the mask secure in its position. FEATURES Bacteria Filtration Efficiency > 98% Melt-blown PP provides superior filtration. Hypoallergenic soft surface layers prevents skin irritation and allergy Ultrasonic bonding technique used to make a clean production. Low breathing Resistance Soft Latex free elastic ear loops Layers : Outer Color Facial Layer Spunbund PP 20 to 30 gsm Middle Filter Layer Melt-blown PP 20 to 30 gsm Inner White Facial Layer Spunbund PP 20 to 30 gsm