The care code on the sofa label: read it first
Many sofas carry a small label under a cushion or beneath the base with a letter on it. W means the fabric tolerates water-based products, S means dry solvents are the right choice and water may harm it, WS means either method is possible, and X means vacuuming and a dry brush only.
Do not assume a soft shiny fabric tolerates water. Read the code, and if there is no label, ask a team that tests a hidden spot before starting. With S or X, do not try a household cleaner out of curiosity.
If what you read differs from the opinion of the person treating the sofa, ask them to explain the difference; a blended fabric or an outer cover may differ from the padding.
