Product Name: Approved High Quality Antivirous Kn 95 Protective Respirator Face Mask Model NO.: 178mmx218mm Color: Blue Shape: Flat Available Times: Disposable Age Group: Adult Style: Earloop Layers: 3 Ply Material: Non-Woven Trademark: TOPLY Transport Package: as The Picture Specification: 200mm*100mm *90mm(50pcs) Origin: Wei Hai Product Description DIFFERENT QUANTITY ,DIFFERENT PRICE1. 5PCS/PACK SIZE:178mmx218mm MATERIAL:BOPP//VMPET//CPP2. 10PCS/BOX SIZE:130mm*135mm*78mm MATERIAL:PAPER3. L:10PACK/ LITTELE BOX 20 LITTEL BOX/BIG BOXSIZE:460mm*410mm*305mm Q1:Can Ihave asample first ?VMED:Of course !Sample are availableQ2: Do your company have any quality management system such as ISO, EN or CE certificate(s)?VMED:Yes, Our company has implemented astrict quality management system (QMS) and our main products have passed CE certification of European Union (EU) .Q3: How does your factory do regarding quality control?VMED: "Four Steps" QC:(1) Workers self inspecting,(2)workshop inspector inspecting,(3)packing inspecting(4) finished goods random inspection in warehouse before delivering.For new orders, mass production samples will be sent for your confirmation on quality for double insurance. Mass production pictures/video available for your reference.Q4: What the expiration date for disposable non-woven products?VMED:We suggest 2 years of shelf storage