A cleaning solution is previously used to ensure you could have removed all dirt and dirt that have accumulated, especially deep in the padding.
For people who have this regarding carpet at home, it is vital that you only use compatible cleaning solutions on it then. http://Musicgarden.com/__media__/js/netsoltrademark.php?d=Accounts.Intercars.eu%2Fcheck.php%3Fredirect%3DaHR0cHM6Ly9Nb3JlZ29naWdhLmNvbS9jb21tdW5pdHkvcHJvZmlsZS9jZWRyaWNzcGllbHZvZ2Uv