PLEASE Show me your fume extractor setup

Most of ya’ll have some HUGELY impressive machines, as well as ‘extraction setups’.

My first question to all, is have ANY of you experienced any kind of fire, smouldering, sparks, and the like? Secondly, have any of you noticed any buildup of soot or creosote inside your ducting?

I’m looking at setting up a ‘laser room’ for My Lady and her business venture. As she is susceptible to ‘scent induced headaches’ I have focused simply on ‘containment’ around her laser (xToos D1) and extraction through directly plumbed bathroom ceiling fan and ducting.

Growing up in a household where my father was a fireman, I simply want to exclude the possibility/potential of the typical ‘chimney fire’ and such. At the same time, I’m completely aware that I may be ‘overthinking’ this. Question is, am I paranoid enough, or too much?

We’re definitely new at this Lasering thing, but ‘burning wood’ is still burning wood. No matter the ignition source. Hence the curiosity. Thanks for ready, and I look forward to further replies on this topic.