Grade 105 Lens Cleaning Tissue, sheet, 100 ª 150 mm Lens cleaning tissue Soft texture will not damage lenses or optical surfaces. Chemically pure tissue is free from silicones and other additives. High absorbency leads to increased safety upon removal of surface moisture and grease. Very strong and leaves no fibers. Lenses and other optical surfaces made from glass, quartz, or plastic can be easily scratched if they are not cleaned with a very soft tissue. High-quality whatman lens cleaning tissue provides the solution. The tissue is chemically pure and free from silicones and other additives. Most importantly, it can be relied on to carefully and thoroughly remove surface moisture and grease.