Safe particle/dust handling is an oft overlooked or intentionally overlooked topic. CNC machines do not generate saw dust; they create fine particles which are dangerous to ones lungs and health.
Proper handling of CNC “dust” is an important part of CNC if one values your health.
The particles released when CNCing carbon fiber, fibre glass and FR4 are much more easily released than machining wood. Exotic hardwoods - particularly those from equatorial zones - can be infected with nasty viruses; some woods can release nasty chemicals when machined too quickly.
Metals are generally not a problem for particles/dust. Neither are plastics - as long as one doesn’t cause them to smoke or burn when machining.
Modest to large CNC machines (larger than the Nomad) use a cyclone dust separator in front of a dust collector (vacuum generator) and either dump the remaining dust outside the building or pass it the air flow through a filter.
Solutions that filter at 5 microns are nearly worthless as our lungs reject that size and larger naturally (although one may cough). It’s the smaller stuff that is dangerous.
Fancy dust collectors for small instruments are available - Festool and Fein - but these are professional level solutions with the associated prices. They meet or exceed the strictest standards domestic and foreign. One can even get a mini cyclone for Festool. $$$.
One of the simplest solutions (and low cost) for a small machine like the Nomad involves a HEPA filter (this is what the masks of firefighters use) rated for 0.3 micron dust in a “shop vac”. Ideally, the enclosure of the Nomad should be under vacuum (negative pressure relative to outside the enclosure) to ensure no dust escape… but this is reaching for perfection.
Don’t reuse vacuum bags that contain CNC dust. Empty vacuums outside when possible. Replace filters on the published schedule.