Follow this guide when cleaning the lenses
https://www.rabbitlaserusa.com/ultimate-guide-replace-clean-co2-laser-lenses
make sure the mirrors are clear and clean them with acetone and a q tip as needed.
vacuum out the bed once a week or as needed.
check the trap in the bottom compartment of the laser and empty out any debris as well as any other pieces you see in the bottom of the laser.
remove mirrors and lenses to clean.
clean the vacuum motor if smoke is dissipating at a very slow rate.
vacuum off the wine tray jig in big rabbit.
make sure chiller has enough water.