Please get hand sanding pads with integrated dust removal connections
(Festool or Mirka hand pads), they connect directly to a vacuum
cleaner.
2ndly, get proper sanding paper - Mirka Abranet is really, really good
- it'¨s not real sanding paper, but rather a sanding mesh - so there's
a hole through which to vacuum the dust off every 0.5 mm - so the dust
removal very efficient.

These solutions also work with drywalling etc., where a downdraft
table is totally useless.