Sodium Flare Polycarbonate Glass Working Spectacles in Plastic Safety Frame - 54/39-18-135mm
The 375 is a simple, sleek frame with a great fit. The RX-375 wrapped shape blocks light from all angles and has head hugging temple design, with excellent splash and side protection. This smaller rectangular frame is light weight and durable made out of a TR-90 nylon plastic for high impact and chemical resistance. The Rx-375 is ANSI Z87+ approved.
This polycarbonate is very efficient in filtering sodium flare in addition to providing good ultraviolet protection. It is very comfortable for viewing under high ambient light conditions such as when working with glowing heat sources for a duration of time. Also, although it has a relatively low luminous transmission of 38%, it is not recommended for glassworking where Infrared protection is needed. This filter is more for soft glass usage.