There are a number of sealers that would do adequately well under light duty. Rustoleum, Valspar, Quickrete, etc. Heavier use may require periodic touch-up. Check Lowes, Home Depot etal for what they carry near you

Thanks for the inputs.
Woodbutcher do you remember the name of the product you used?

Thanks

We have a large commercial facility that we used Kure N Seal 25LV. This was a product recommended by a local concrete products store. It comes in both a water based and a solvent based. We bought 5 gallon buckets. It makes clean-up for dust and spills much easier. The solvent based is potent and stinks, but works. We used the solvent on exterior parking & interior work areas. The water based stinks less but still works. Two coats. Dries quickly so can be done in a day. It can be sprayed on or rolled on with a large (15-18" roller). We had troubles with a sprayer clogging up. Roller worked great. The prep work for this product was minimal. Just damp mop and apply (when still damp). This product wasn't available at Lowes or HD when I was looking into products. It might be overkill for your purpose but it works.

It is a one year old home. Before you do anything to the floor look into the cause of the "dust" and if a warranty would cover it.

Has the floor been thoroughly wet mopped till the water came up clean?

A huge amount of dirt can be on a concrete floor and only show up when the concrete gets reasonably dry inside a house.

If the "dust" returns after a complete clean up you may have a concrete issue.

Thanks for all the suggestions.
Does anyone know if you can rent a cleaning machines much like you'd see in HD when they clean their concrete floors?

Thanks

"Does anyone know if you can rent a cleaning machines much like you'd see in HD when they clean their concrete floors? "

Try some rental yards.

You might be able to just hire a cleaning service to use their machine for the job.

thanks for all of your inputs.