One, bran. In the bran sold on the market, talcum powder is often found, and the amount of talc is 8% to 10%. Identification method: insert the hand into the bran and then withdraw. If there is a white powder stuck on the finger, it is not easy to shake off, indicating that it is mixed with talcum powder. If it is easily shaken off, it is residual flour. Second, soybean meal (cake). Soybean meal (cake) is often found mixed with sediment. Identification method: Take 25 grams of soybean meal (cake), and soak it in a glass filled with 250 ml of water for 2 to 3 hours. Then stir gently with a wooden stick and let it stand for a while. You can see the pods (cakes) and sediment. Gradually stratified, the upper layer for the cake, the lower layer of sand. Third, methionine. There are counterfeit products. Identification method: Take a 250 ml beaker, add 50 ml of distilled water, add 1 gram of methionine, stir gently, pseudo-methionine is insoluble in water, and true methionine is almost completely soluble in water.
Product Dimesnion: 6.18" x 4.13" /15.70cmx10.50cm
Mask Fabric Material: 5-ply material,100% polypropelyne
Ear Loop Material: 70% polyamide, 30% elastane
when to use: suitable for adults to use daily in a variety of settings such as home, outdoors and work
packaging: 5 pcs of mask in one sealed printed plastic bag to ensure hygiene or 10pcs per box
certification/standard: GB2626-2006(China KN95 standard) and FDA registered
about the manufacturer: Kapanou is china-based healthcare company
KN95 Mask with Filter, KN95 Mask with Exhalation Valve, KN95 Mask with Valve FDA GB2626-2006, Anti Dust Fog PM2.5 KN95 Mask with Valve
Ningbo Debeida Science&Technology Co.,ltd. , https://www.dbdmask.com