I recently started making a new puzzle product that requires a lot of laser cuts. I was getting some customer complaints about the burnt wood smell that lingers after cutting so I started looking for a quick and easy way to deodorize the puzzles before shipping them.
I usually just sand and spray with a clear coat, but for the puzzles sanding is not an option and the tolerances are so tight I don’t want to spray them.
After trying lots of stuff (like Fabreeze which did not work at all) I found that after a fire, remediation companies will bring in an Ozone generator and let it run overnight in a house and it will completely eliminate the smell.
So I bought a very cheap and very small Ozone generator. These generators are rated by the amount of ozone they produce in an hour typically in mg or grams per hour. This little guy put out 2000 ug/hr (millionths of a gram) so I did not have big expectations, but thought it would be worth a test if I put the parts in a small Tupperware container with the generator to see if it helped.
After just 10 minutes in the box, the parts came out with so smell at all, it completely removed all traces of the burnt odor and 24 hours later they still had no odor.
I can’t imagine what one of the larger machines that produce 100g/hr would do.
I know that high concentrations of ozone can be harmful and you should never be in a room where a large ozone generator is running. Ozone in high concentrations can also do bad things to plastics and other man made materials. So you would not want to put one inside your laser.
But for small parts you can put in a sealed container this is amazing!