VISION 20™ Polyester Knit, Heavy-Weight (140 gsm) Cleanroom Wipes are extremely low in particle generation and chemical extractables. The fabric consists of premium quality virgin polyester fibers that are continuously filamented throughout the knit construction. VISION 20™ Wipes are knitted on state-of-the-art equipment especially for use in cleanrooms. This fabric undergoes a multitude of special processes that include cleaning, scouring, cutting and a special proprietary cleaning process. Most importantly, VISION 20™ are laundered in a class 100 cleanroom using ultra-filtered water of 0.45 micron purity and HEPA-filtered air during moisture removal. All VISION 20™ Wipes are individually inspected with a lot-to-lot traceability and using ISO 9000 standards.