Vacuum the upholstery: Moving it from left to right in short, overlapping lines. Change over to the crevice nozzle, and vacuum in between the seams and under the cushions.
Treat stains: Attack stains with the appropriate water- or solvent-based cleaner. Let the cleaner sink in, and then blot it with a microfiber cloth. Don't scrub the stain, as the action could push the stain farther into the upholstery or damage the fabric.
Machine wash: Remove the Fabric from the Sectional framing and cushions. Wash it on a gentle cycle in cold water with a mild detergent.
Make sure the cover is zipped closed and placed in a laundry bag before putting it in the washing machine. Covers can be line-dried but many customers prefer to put the cover back on the cushion while it is still damp. Do not machine dry covers.