This system combines the lightweight Adflo powered air-purifying respirator unit with the top-of-the-line Speedglas 9002X welding helmet. The helmet features an extra large viewing area combined with advanced electronics to deliver the most versatile auto-darkening filter ever. PAPR system is lightweight and its exclusive "stackable" configuration means the Adflo high efficiency (HE) particulate filter can be combined with the chemical cartridge for additional protection.