Kimtech Pure Wipers feature 70% Isopropyl Alcohol and 30% Deionized Water to saturate the polypropylene wiper sheets. Ideal one-step application of alcohol to critical surfaces. Contains semiconductor grade alcohol. Resealable pouch with case liner. Recommended for the most critical wiping tasks in ISO Class 4 or higher cleanroom environments. These wipers are ideal for use in pharmaceutical, high-tech, biotechnology and medical device industries. They are double-bagged in anti-stat packaging.