51 x 108mm CR39 is a thermoresistant composite resin, protecting the welding filter from spatter, metal & incandescent particles produced as part of the welding process. They do not protect the eyes against impact, flying particles & dangerous rays. (UV/I)
- Compliant to Australian Standards
- CR39 material for longer life
- Resistant to smoke and spatter
- Known in industry as 1000 hr lenses