I don't mind the beeps when you first turn on the desktop purifier for the F1 - they let you know that it's on, connected and ready to go.  What I do mind is the annoying beep at the start and end of EVERY. SINGLE. BURN.  It is really annoying, particularly when you are cutting or engraving a bunch of quick little jobs - honestly, those beeps serve no purpose (except to drive us all crazy).  Given the choice, I doubt that any user would prefer to have those beeps.   Other F1 owners have commented that it drives their pets crazy too. I am often tempted to open it up and cut the wire to the beeper, but I hope that you are able to take care of this with a firmware or software update, so that it can eliminate the beep whether you are using XCS or Lightburn.  I like having it set so that the fan only kicks in when you are actively using the F1 - I don't want to set the purifier to run constantly.  Hopefully you can implement this fairly quickly.  It's a small change that will make a big difference - I'm sure it will make the majority of your users very happy.