Challenge in sealing basement cement floor - near zero ventilation

I have an artist studio space in the basement of a retail store in downtown Washington DC. The cement floor is five years old and has some cracking. I had been managing the concrete dust that normal traffic kicks up with a few area rugs, but have tossed them & just want a semi-finished dust free floor.

My challenges: yards from my space the retail shop has it's basement showroom, so I need to keep the odors/gassing low. (They will tolerate some as inevitable.) So typical sealants are out. A duron salesperson told me a stain by itself will keep down the cement dust -- is that true?? Suggestions for low-odor options?

The results don't have to be elegant -- looking like a funky artist's space is OK. I just want to keep dust down & give it a more finished look without causing brain damage to folks in the store.

 

How wide are the cracks? Can you chop out what's loose & either use cement caulking or a ready mix to fill the gaps? There is no reason to seal the floor.

 

Pulpo's advice is good on the cracks. You could also force butyl rubber into the cracks and use a putty knife to smooth it down. It will give and take with the floor in the future. As far as sealing the floor, I understand it will be easier to keep clean if there is a slicker finish on it. You may check into flooring polyurethanes or even paints with low VOC. Keep in mind, however, the slicker you make your floor, if water spills, you will have an indoor slip-n-slide