Zoom Wipes have been created with a first class substrate of 45 gsm. This is one of the heaviest cloths used in the industry. Zoom Evolution Wipes are EPA Certified to kill MRSA, STAPH, H1N1, HIV-1 and over 40 other pathogens. We have ensured that no bleach, alcohol or phenols are used in our wipes to ensure that they are safe for use on all non porous surfaces. A pleasant citrus fragrance will leave your surface areas smelling fresh. Cleans and disinfects in one easy step, and effective in killing 99.9% of bacteria in 15 seconds.* (see product labeling). 800 Wipes Per Roll (8″ x 6″), 4 rolls per case.