i wonder if you do spray waters inside the house against the wall, floor and every where? i found that to absolutely clean the floor, must spray it with water and some detergent...else there is no way to totally remove the dust by just mopping..

yes indeed u don't splash water onto the wood, and don't do that on a new wall too. But for the floor, splashing water and detergent onto it is the most effective way.. On on of my wall, I don't know which type of paint my contractor used, it is very smooth and easy to clean with wet cloth so that's what we do to wipe off the dust from the wall.