... Application of portable CO2 fractional laser: Ablation laser resurfacing CO2 fractional laser for skin tightening, fractional skin resurfacing, Skin renewing, wrinkle removal, whitening, pore minimization; Acne scar removal one surgery, Smooth ... Laser Work mode Ultra pulse, fractional CW Output way Fractional beam& scan beam Cooling system Wind cooling with treatment head. Water cooling with machine ...