We recommend cleaning the Terp Pen or Terp Pen XL weekly. Depending on how much you consume you may need to clean a little more regularly. To clean, screw off the body sleeve; this will reveal the battery casing and coil. Using isopropyl alcohol and a paper towel, rub off any buildup that may be in this area. You can also remove the coil to also wipe away any excess residue.
**Check out ou youtube for in-depth cleaning videos