Polycarbonate lenses are lightweight and scratch resistant that filter sodium flare and UV similar to glass Didymium or Ace lenses.
Lens Size: 52mm wide x 35mm high.
B3-Series: This series of eyewear offers the same protection as the SB series but has the addition of a welding shade number 3 for additional brightness reduction. The eyewear in the B3 series would typically be used by the borosilicate glass lampworker. These lenses offer Sodium Flare, UV, and IR protection.