The frame work for the Single / Double glazed vision panel shall be fabricated from Aluminium / GI Sections. The framework should be fixed on both the faces of the wall. The Window frame shall then be lined on one or both the faces with 5-33 plain toughened glass with help of double sided adhesive tape. The periphery of the glass shall be filled with suitable sealant either silicon or acrylic as per requirement. The window shall also be provided with silica gel breather for absorbing any moisture trapped inside the vision panel.