NeuMask (4-Ply) is made with 2 layers of melt-blown fabric which has a ≥ 99% BFE (Bacterial Filtration Efficiency) and ≥ 99% PFE (Particle Filtration Efficiency). Effectively blocking the spread of bacteria and viruses. Melt-blown fabrics are known for being a key element used in the production of N95 masks, surgical masks, commodity masks, and filtering facepieces. A melt-blown layer is critical as a filter because it holds an electrostatic charge which substantially increases filtration efficency. This ensures dust, particles and bacteria cannot infiltrate the mask. Designed for better comfort, exceptional breathability and maximum protection. This product is suitable for daily use.