I would be concerned. The vapors are really stong from the stains and sealant. The last time we had our hardwood floors redone, we left the house for a few days. Supposedly the newer sealants are less toxic, but your floor guy should know. The warnings on the product containers should say if there are dangers from the fumes.
I wonder too about the vibration thing, but the other consideration is that those big sanders throw a lot of dust in the air that you sure wouldn't want sucked in the tank.
I'm interested to hear other's input on this,too as my hardwood badly needs to be redone, but I've been afraid to try it with the tank.
I might not be the best to answer though because I'm careful to the point of paranoia. I won't even spray insecticide in the house because of my kids, fish and birds.