Question about clean optics and smoke - recommended cleaning?

[AhnoldZ]

They use purge air to keep the optics cleaner than they would be otherwise. It doesn’t use clean air from outside the unit, so you will have to clean the optics as appropriate.

Air assist and flame reduction

Actually, there are a bunch of things going on (and terminology varies). What we use: Air assist blows on the cut and helps clear debris Purge air blows clean air on the optics to keep them from getting dirty Intake air brings fresh air into the case Exhaust air blows air out of the case Cooling air blows over things that get hot it gets confusing. : ) one of the ways we were able to lower the cost versus a traditional laser was by combining subsystems - like the exhaust also does cooling.