Maybe it should be a hepa vacuum due to releasing carcinogenic particles in the air or not enough cfm and not pulling all dust created into the vacuum. Hardwood refinishing guys would know the answer. Where are the carcinogens if any coming from when sanding, the urethane, wood fibers? I know cutting it is from the adhesive bonding engineered layers together, that's about as deep (shallow) I've looked into it.
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