SWASA 3 Layer Surgical Mask is Innovated & Developed by E-Spin Nanotech Private Limited at SIDBI Incubation, IIT Kanpur. Its inner layer is a skin-friendly non-woven fabric. The middle layer (melt-blown) is the most important the core layer, which uses a melt spray cloth with electric treatment to filter bacteria and viruses. The outer layer is waterproof non-woven fabric
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