The AGW^®-250 lens was developed to answer requests for even better ultraviolet and infrared radiation protection while also reducing the light level perceived by the eye.

It consists of a base lens of AUR^®-92 with a thin layer of either shade 4, 5, 6 or 8 Green Welding (full coverage) cemented to the base lens. This is very desirable when working with high pressure torches and glass requiring very high temperatures.

Suggested uses are: where there is a need for attenuation of bright illumination, such as that generated when working Pyrex^®, quartz, Vicor^®, platinum jewelry work, and any operation where long periods of time are spent gazing into a high temperature furnace or fire pit. Quartz workers must use a minimum Shade 8!

Lenses are available in plano (non-prescription), readers and single vision lenses.

Clip on's are available in this filter.

Protected under United States Patent Number 6,612,697.

Specifications (Shade 4):

Maximum Visible Light Transmission: 11.2 %
Average (400 to 750 nm) Visible Light Transmission: 4.9 %
Average (751 to 3000 nm) IR Transmission: 4.0 %
ANSI Welding Shade Equivalent: 3.5 approximate

Specifications (Shade 5):

Maximum Visible Light Transmission: 5.7 %
Average (400 to 750 nm) Visible Light Transmission: 2.1 %
Average (751 to 3000 nm) IR Transmission: 1.5 %
ANSI Welding Shade Equivalent: 4.5 approximate