MicroSeal 1200 is a 100% polyester knit wiper ultrasonically sealed edge cleanroom laundered wiper recommended for ISO 3-5 environments. Its low endotoxin levels and high absorbency makes it ideal for pharmaceutical and medical device manufacturing applications. Weight and caliper provide an excellent hand for cleaning rough surfaces - Critically low particles, fibers, ions and extractables, with Low endotoxin level. Chemically compatible with IPA, acetone and other solvents.