There is a difference between brushed motors that are open, vs sealed. A sealed brush motor complies with class 2, explosive dust environments. Actually explosi

There is a difference between brushed motors that are open, vs sealed. A sealed brush motor complies with class 2, explosive dust environments. Actually explosive, like grain. But not class 1, where you have explosive gas mixture environments, there you need an explosion proof motor casing that can contain the explosion. If you have a properly size electric motor, with a sealed case, it’s not a problem in a wood dust environment. You’re still responsible for sweeping up the dust, to comply with fire codes for a bunch of other reasons.