Bug bombing question?

we are bombing for fleas and have a newborn and 2 kittens the kittys were found infested with them and we treated them, but now our home is now infested so we are bombing. I have removed all of the baby items from the home and i mean everything and have aranged for her to stay with my parents for 2 days while we wipe down the bomb residue. Im removing the cats food and them for the time it says on the box, should i remove their litter as well. I emptied the box, but im talking about the bag of litter. Anything else?