The WH70 BH3 helmet features variable shade 9-13 with adjustable sensitivity and delay functions. A light weight aerodynamic shell enhances fume deflection, and the curved cover plate reduces heat build-up, fogging, and reflections. The helmet givesthe welder the flexibility to seea consistent shade clearly frommany angles. It also provides an expanded view that lets the welder see the entire work area without constant head turning. This new helmet passes ANSI Z87.1 + standards and has earned the best Optical Classification, a designation only achieved with Balder Technology.