Do you require a wiper for a sensitive environment, like clean rooms, medical equipment manufacturing or the biotech industry? Kimtech Pure W4 PreSat Alcohol Wipers could be right for your business. The 100% polypropylene wipers come pre-saturated with 70% isopropyl alcohol (semiconductor grade) and 30% deionized water, in a resealable pouch. They are specially designed for ISO Class 4 and higher cleanrooms and are low lint (good for environments where lint free is important). These disposable wipers are ideal for use in pharmaceutical, high-tech, biotechnology and medical-device industries that require alcohol wiping for critical tasks.