f1f6997e__and_without_Damaging_them______Description
[Method] Specialist Lens Cloth [Safe] Yes [Free] No [Efficient] Yes, usually work well but require periodic replacement. Some can be washed [Description] 
The sort that you can buy from on opticians. Usually good quality and impregnated with a de-misting agent. Breath on the lenses to clean
How to Clean Spectacles Efficiently and without Damaging them....
Description