S-Series: This series would typically be used by the soft glass beadmaker & lampworker. Sodium Flare and UV protection.SB-Series: This series is slightly darker than the standard series. The SB-series eyewear would typically be used by the soft glass or clear borosilicate glass lampworker. Also excellent for kiln work and glassblowing. Sodium Flare, UV and IR protection.B3-Series: This series features the same benefits as the SB series with the addition of a welder’s shade #3 for additional brightness reduction. Sodium Flare, UV and IR protection.