I have seen people use air scrubbers for this situation, but keep in mind, just because you have a filters running during the construction does not mean that they will keep EVERYTHING out of the ductwork. You should have a certified air duct cleaning company come out and see if they need to be cleaned. We have a lot of clients that build custom homes, and when they get done, about a week before the homeowner moves in, they have the ductwork cleaned out.
A lot of builders will tell you that you do not need to have the ductwork cleaned when moving into a new home. The reason they say this, a lot of times, is because they do not want you to think that you are moving into a dirty home, but in fact, no one can prevent construction debris from entering the duct system.
Click Here for more information
Thanks,
Clay