It's All In the Foam

• 1). Place cushion in a shady area outdoors for one to two hours. This will eliminate most odors.
  
  
• 2). Mix one-quarter cup of carpet/upholstery cleaner and one gallon of water in bucket. Vigorously agitate to create a foam layer. This can be substituted with a foaming carpet/upholstery cleaner.
  
  
• 3). Spread the foam over small areas of the cushion. Test for colorfastness on a small inconspicuous area first. Avoid rubbing too hard or allowing liquid to seep into the cushion. Chemicals and water can break down the composition of the foam rubber.
  
  
• 4
  
  
  With a damp cloth or sponge, wipe every area that has had cleaner applied. Rinse cloth or sponge frequently to remove the cleaning foam. Repeat until all cleaning solution is removed.
  
  
• 5). Place in a shaded area outdoors to dry completely. Turn over as needed to allow equal drying of both sides.