Select cleanroom swab size. 2. Depress the fluid dispenser to flow cleaning fluid into the top, and touch the swab to the methanol (do not place swab directly into the fluid container). 3. Touch the swab to the cleanroom wipe to remove excess liquid. 4. Depending upon part size, apply swab to filter using a circular motion for round parts or an S-shaped motion for rectangular parts across the filter surface. It’s important to keep contact with the filter throughout this process. 5. Turn filter over and repeat. 6. Do not use the same swab side on the second filter side.