dust-proof three-layer and disposable dust masks breathable bacteria proof protective mask

product description: product name:mask quantity:20/50/100 pcs color:as picture show size:18*10*1cm material:non-woven fabrics features: 1. disposable mask is composed of outer non-woven fabric, middle melt blown fabric and inner non-woven fabric material, plastic nose clip and mask belt 2. wear our anti allergy dust mask at work or when going out to maintain health and safety 3. help you breathe more easily by protecting your respiratory tract from pollutants and allergens, and keep ...