The LG-014N are a modern style of Erbium laser safety goggles designed to protect against 2780 nm and 2940 nm with an OD ( Optical Density ) of 5+ and 6+ respectively.
They are fully certified to Australian and European laser safety standards with L ratings marked on the glasses and come with an adjustable head strap and arms allowing them to fit to most head sizes.
http://www.lasersafetyglasses.com.au/lg-014n-erbiu...
Protection (Wavelengths & Optical Densities) - Marked on Glasses
2940nm - OD 6+
2780nm OD 5+
10,600nm (10.6micron) - OD 5+
190-398nm - OD 5+
Visible Light Transmission - 93%
CE L-Ratings
180-315 D L8
180-390 IR L4
>315-390 D L4
2780-2940 DI L2
10600 DI L2