1. Outer layer is 60 GSM Spun Bond (100% Polypropylene) Hydrophobic Material, 2. Layers of 35 GSM Melt blown Filter 3. Layers of 35 GSM Melt blown Filter 4. Layer is 60 GSM Hot Air through Non-Woven Fabric 5. Inner Layer is 30 GSM Spun Bond (100% Polypropylene) Hydrophilic Material All tests and certification is ready and already exporting to Europe. Price can be reduced due to order quantity.