Problem with saved gcode

Export/Save Gcode for snapmaker 2.0 A350 latest firmware, there is a problem in the gcode, code M107 is generated in that code and when i open it in Luban software and burn the laser power is bad.
Editing the code and delete all M107 will fix and it burn with right power.
I can’t see what M107 is doing and why it’s there, is there some config to change for Snapmaker device to disable this.

I think i have found the problem, problem with code M107 is for turn off the laser fan, i have disable air assist in layer and it then generates M107 code, when you have air assist enabled the code looks right, i did think the air assist was something else and has nothing to do with the laser fan.