3M 428040 V-type variable light screen inner protection sheet

3M 428040 V-type dimming screen inner protective sheet +2 shading number
Product features:
reliable dimming, dimming time 0.1 milliseconds
filter patent technology, uniform light transmission, clear imaging,
boot state, shading number 3, preparation and accuracy before welding Polishing provides plenty of light.
Unique welding mask design is
lightweight and durable.
Speedglas9000 series masks are made of very durable polyimide, heat-resistant and impact-resistant. And the weight is only 390 grams, and the wider face mask shape makes it easy to wear into a small space.
The breathable welding helmet
Speedglas9000 series welding mask has a patented exhalation vent, which can exhaust carbon dioxide gas, heat and humidity in the welding mask. It feels energetic and clear-headed when using it, and can work with it all day long.