Safe for use on monochrome CCD's, scanners, optical mirrors and other sensitive electronic and photographic image-forming surfaces when used as directed. e-wipe combines an ultra pure lint-free wipe and a precise pre-measured amount of an ultra-pure, highly refined alcohol mixture. This convenient packaging prevents over usage and contamination which can destroy an expensive component. As originally sealed, this packet contains not more than 5 parts per million of contaminants and when used, will dry instantly leaving absolutely no residue! To use, tear open a packet at notch and remove wipe. With a gentle flick of the wrist, the pad will unfold. This should be done with one hand to minimize handling. Lightly wipe across the surface to be cleaned in a single direction only. Do not go over a previously cleaned area with the same wipe, or re-use a wipe at any time, as the dirt collected can cause severe damage. Recommended by manufacturers of digital cameras, scanners and other devices with critical cleaning requirements. This product meets or exceeds SEMI standards. Not for use with Dye-On CCD chip.