Product Description - * G1 Wonder Stylo Mask with antiviral Graphene-silver nanotechnology membrane inside that destroys coronavirus instantly along with other virus and bacteria. Tested at several NABL certified laboratories. * Antimicrobial, Anti-Pollution, Anti-Dust, Reusable, Washable, Breathable Mask Key Features: * Patented NM Graphene-silver nanotechnology membrane inside * 99% - BFE - Bacterial Filtration Efficiency * 99% - PFE PM 2.5 Particle Filtration Efficiency * Washable and reusable upto 50 times gentle washes * Adjustable ear loops for comfort and adjustable head loop for support which minimize the pressure on ear * Nose pin to minimize fogging on glasses / spectacles / goggles No. of Layers - 4 Layers Types: * Outer Layer (1st Layer) - 3D Air Mesh for filtering coarse particles * 2nd Layer - NM Graphene Silver Membrane * 3rd Layer - SSMMS Fabric Inner Layer â?? * 4th Layer - 100% Cotton * Size - Large and Medium * Color - Blue and Black * Merchant SKU - G1ST2BLUL, G1ST3BLUM, G1ST6BLKL, G1ST7BLKM * Sub-Category - Anti Pollution Masks Type - Face Mask Ideal For - Unisex Product Dimension * Large Mask Size - Length 20 cm ; Breadth 13.5 (Height) * Medium Mask Size - Length 20 cm ; Breadth 12.0 (Height) * Box Packaging Size (in cm) - (LBH) 13.5 cm x 2 cm x 19.5 cm (including Flap) * Country of Origin - India