Getting a coarse screen for your Mighty or Crafty Vaporizer may be ideal for you if you think cleaning your mesh screen takes too much time and effort. For finer screens, you often find yourself cleaning it often, a result of herbs, liquids, oils, and other residues buildup. With coarse screens, there is a lesser need for cleaning, but you may find you are using more liquids or oil to have a good vaping session. This mesh screen is intended only for use with the cooling unit.