This Powered Air Purifying Respirator (PAPR) is a compact and lightweight system for welders. The welding helmet featuring an auto-darkening filter (ADF) that automatically detects weld arc and switches the weld shade. It is adjustable from 9 - 13. A flame-retardant Face Seal around the welding helmet protects against sparks during use. The lightweight blower unit features an adjusting waist belt. The flame-retardant Breathing Tube measures 35"" in length. The High-Efficiency (HEPA) Particulate Filter provides NIOSH-approved filtration from particulate contaminants. It can be easily set and locked into place for quick replacement. The lithium-ion Battery provides 8 hours of power. An audible alarm signals when a new filter or battery charge is needed.