Peroxidized filament veil has the performance of retarding flame and proofing fire. Because of high limit oxygen index, peroxidized filament has feature of heat insulation and fireproof, it will be the excellent choice of fireproofing clothing, special operations clothing, fireproof felt and fire prevention facilities and environment. Besides, MANMU peroxidized filament has the feature of weavability, can be customized according to different limit oxygen index. Combining with ceramic fiber or glass fiber, it can stand 400~800°C. So it can be also widely applied into the fire prevention of welding.