Welding helmets (welding masks) Auto-darkening welding helmet AS-3000. Fashiondesign,reasonableergonomicstructure,comfortandconvenienttouse ThemaskismadeofspecialNylon,andhashigherenoughstrengthandtemperatureforwelding Amplemaskspace,safetystructure,perfectfaceprotectionfromwelding,especiallyforearsandneck. UsehighqualityLCDandmultilayeropticalinterferencefilter.ProvideclearviewandpermanentUV/IRprotectionupDIN15 Powersupplybysolarcells,nobatterychangerequired. Standardautodarkeningfilterdimension:110x90x8.5mm(4-1/3x3-1/2??x1/3). MaskandautodarkeningfiltermeetwithCEandANSIstandard. Operationtemperature:-10C°-55C°(14 F°-131 F°)