Don't use a shampooer. If you ever wondered why a carpet that has been shamppoed stinks and is tiff andd dull looking it is because the dirt and shmppoer or chemicaals is still there. The Rug Doctor or the carpet cleaner you have at home will clean it and suck up the dirt and water. Only thing that concerns me is the gloors, in an RV maybe getting damp and delaminating and buckling etc. I've seen some that were constructed out of the wood chips stuff. Clean and then use a strong wet/dry vacuum and windows open and fans or closed and air conditioner and dehumidifier getting rid of moisture quick.