The LG-009 CO2 laser safety goggles provide a high level OD 7 (10,000,000X protection).  They are fully certified to Australian laser safety standards and work well with or without prescription glasses underneath.

http://www.lasersafetyglasses.com.au/lg-009-co2-la...

Full specifications are shown below.

Wavelength and OD Specifications (Marked on the glasses)

10,600nm (10.6micron) - OD 7+

9000-11,000nm - OD 7+

190-398nm - OD 7+

Visible Light Transmission - 93%

CE-EN207 L-Rating 

190-315 D LB7 + IR LB4
>315-398 DIRM LB5
9000-11000 DI LB3

If you have any questions about the most suitable laser safety goggles for your requirements feel free to contact us on 1300 411 337 or email us at info@dioptika.com and one of our laser safety experts will be happy to help.