... in both Particles and Extractables Description:1.Polyshield Hard drive Wipe is constructed from 100% Polyester,high tension ... clean room wipe is used in the electronics, semiconductor, hard disk drive, optics-electronic, TFT-LCD, IC, SMT, PCB, ... General Purpose Cleaning.Applications: -Hard drive wipe, cleaning wiper, disc wipe. - Used in electronics,semiconductor , Hard disk drive , LCD,IC,SMT,PCB, ...