This headgear integrates hardhat, faceshield, welding shield and respirator when used as directed. This headgear can be used with 3M GVP-Series, or 3M Adflo Series Powered Air Purifying Respirators (PAPRs), or 3M Supplied Air Respirator Systems. It has an assigned protection factor of 25 when used with 3M Adflo-Series PAPR, and a protection factor of up to 1000 when used with 3M GVP-Series PAPR or 3M Supplied Air Respirator Systems