The Er:YAG laser excise the skin with superior precision that is measurable in microns. The Erbium YAG laser is considered the gold standard of lasers that are used in the treatment of dermatological related issues. The lasers along with it?s fore runners are the most popular Er:YAG lasers around the world, boasting a satisfied user base. Unit features eight different spot sizes for precision treatment. This allows safe removal a different types of skin lesions that are located at the level of the epidermis and dermis. The Erbium laser is able to treat wrinkles and scars with a high level of efficiency. Unit is able to treat acne without damage to the skin by heat this is because of the high level absorption of the YAG wavelength by water. Laser: Er:YAG Wavelength: 2,940 nm Pulse energy: Up to 1.5 J2 Fluence: 2-100 J/cm² (Ablation) 2-144 J/cm² (MicroSpot) 1 J/cm² (Thermal mode) Spot size: 1-6 mm (Ablation) 13x13 mm (MicroSpot) Frequency: 1-20 Hz Laser class: 4