Are these model adjustable? We are looking for an adjustable PPE for use in the Operating Room when the holium laser is used.

Yes! The model 300 frame offers the feature of an adjustable temple length, which is essentially the length of the frame's arm. Please note these glasses protect against the following wavelengths at the indicated optical densities: 870-950nm 6+ 950-1000nm 9+ 1000-1550nm 10+ 1550-2750nm 6+ 2800-11,000nm 8+