Med-X Laser Safety glasses provide eye protection for both patient and clinician. Suitable for use with all Med-X Laser Therapy Systems or equivalent. Specifications: Optical Density 1.5 @ 600-870nm Protect your eyes during laser therapy treatments with Med-X Laser Safety glasses. With an Optical Density of 1.5 at 600-870nm, these glasses offer superior protection for both patients and clinicians. Whether using Med-X Laser Therapy Systems or their equivalent, you can trust in the quality and reliability of these safety glasses.