Ideal also for cleaning the glasses, I take only the towel without fluid and it works great: When the glasses before and after cleaning to the sunlight or to a lamp holding then you see: Some Brillenputztücher push only the fat (get to the spectacle by skin contact, which can not always be avoided) only back and forth - I've several bestsellers, brand quality, "insider" etc. ... even a nano cloth. This is one of the towels, which also absorbs the fat-super clean! But be careful not guaranteed: some cheap sunglasses are coated with UV filters and can only be cleaned with water, because the coating may come off. Without UV coating that would be bad for the eyes, because the pupil is dilated by the tint, but no more UV filters were present, thus maximum damage to the eyes; much worse for your eyes than no sunglasses !! In my Ray-Ban Wayfarer, the glass contains the UV filter, because nothing is likely to happen. Am pretty sure, but no guarantee ... ask me optician !! I'll do the cleaning now always with this cloth, duration of cleaning max. 10 seconds. Ultrasound can be forgotten, however, is too expensive. Ultrasound would only what if it were not for this cloth and other similar good towels and even then I'd think about it exactly. For TFT and large surfaces the cloth is always ideal, if only because of the size and specially it is done so. I have large hands and prefers such larger towels. Clear the spectacle it is therefore not fit in .... you can not have everything :-)
