Smoke extraction helps eliminate the smoke produced by running the laser. 
 
What's included:
      1 bracket that will attach to the 80mm or Makita mount.
      1 smoke extraction attachment (2 parts)
      4 screws to attach the bracket to the Makita or 80mm mount
      laser mount (included in full kit)
      4 inch hose port (included in full kit)
 
How it works:
     You attach the bracket to the Onefinity spindle mount (the bracket will also attach to the laser mount). You attach the smoke extraction part to the bracket and then the laser attaches to the front of the smoke extraction part. Then you connect your hose to the top of the smoke extraction and hook it up to your choice of a ventilation system and place the hose outside.  You must have or purchase our laser mount. The full kit includes a laser mount. If you would rather purchase the laser mount separately there is a link at the bottom
 
WARNING!!!!! 
 Do not attach a hose that is connected to a bucket or other container that is full of sawdust or other debris due to the risk of smoldering pieces falling into sawdust and catching fire. We recommend placing the hose outside.  

OPTIONS:
Full kit: comes with the laser mount, smoke extraction, 2.5-4 inch hose adaptor, and 4-inch hose port. 
   
Smoke extraction: only comes with the smoke extraction part with a 2.5 inch female opening at the top. if you need the 2.5-inch hose port the link is listed below. You will want the 2.5-inch male part only.
   
Smoke extraction and adaptor: comes with the extraction piece and adaptor. If you do not already have the hose port that connects to the top the listing is below. You will want the 4-inch male port only
 
If you don't want to buy the full kit here are the links to the other items included in the full kit.
 
Laser mount:
https://www.solafidedesignskc.com/product-page/j-tech-laser-mounts
 
A 4-inch or 2.5-inch hose port ( male part only)
https://www.solafidedesignskc.com/product-page/quick-connect