Question: what is the best carpet cleaner for stairs?
Answer: Bissell 3624 SpotClean Professional Portable Carpet Cleaner. ...  BISSELL SpotClean ProHeat Portable Spot and Stain Carpet Cleaner. ...  BISSELL ProHeat 2X Revolution Pet Full Size Upright Carpet Cleaner. ...  Bissell Multi-Purpose Portable Carpet and Upholstery Cleaner.