Sundstrm protective helmets offer high-performance respiratory protection with outstanding durability and safety. When used with the SR 500, SR 500 EX or SR 700 fan units and approved filters, they form a reliable fan-assisted system. The built-in visor and breathing hose maintain positive pressure, preventing harmful particles from entering the breathing zone during demanding work. Features and Benefits Integrated visor with positive pressure for enhanced respiratory protection Compatible with SR 500, SR 500 EX and SR 700 fan units Ideal for hot, strenuous or extended work environments Provides an effective alternative to standard filter respirators Designed for comfort, reliability and consistent performance Notes Available with or without SR 500 fan unit