However, even though the material of the couch itself is already easy to be cleaned up, durable and also comfortable but it still needs correct treatment in term of cleaning, because everything is basically about how to maintain the good quality by doing appropriate treatment. The code can be W, S or X. W code means that you can use water to clean it, S code means water-free solvent, while X code means that you should not use neither water or water-free solvent. It means that you can only vacuum it. However, for code W and S, you still can vacuum it before doing the treatment. Furniture & Furnishing.