... The JZ-2 Generation-2 Ultra Pulse Co2 Fractional Laser System, with 4 working modes as pulse, Scanning, Ultra Pulse ... /sun spots/Red vascular removal Fractional laser working principle With fractional CO2 laser resurfacing , the laser beam is broken up pr fractionated ... results almost as good as traditional full-surface CO2 laser, but with far less risk, downtime, infection and complication.Nicely, ...