Valutek’s Cleanroom Documentation products have been specially formulated to minimize particulation in controlled environments. Formulations include a proprietary process which impregnates the paper to minimize particulate and ink smearing. Valutek Cleanroom paper features improved flatness, which allows for better performance in printing equipments. Valutek Cleanroom Paper comes in 8.5x11-inch size in pink, white, blue and green; and in 11x17-inch, available in white. All Paper is Not Created Equal. A controlled environment requires a specialized paper that won't introduce any contamination like particulates or filters. At the same time, this paper needs to work with all standard office equipment like high-speed laser copiers and printers. Cleanroom paper should also possess the ability to be archived for indefinite periods of time. The notepads are commonly used for note taking, reminders and document annotation in a cleanroom Class 1 -10 (ISO 3-4) critical environment.