Things You'll Need
If you own a vinyl couch, chances are you find it easy to clean and maintain. If your couch is new, though, that new vinyl smell may be overwhelming. If your couch is older, something else must be causing a funky smell, so determining where it is originating will help you get the smell out. After removing the smell, clean new spills immediately and check the area between the cushions and the back often for crumbs and other foods that can quickly produce foul odors.
Open the windows to help a new vinyl couch air out until the new vinyl smell dissipates. Running fans with the windows open will help the smells disperse more quickly. Also, keep the room on the cool side to reduce the amount of vapors being emitted from the vinyl after you bring it home.
Set dishes of baking soda or vinegar near the new couch to help absorb the new vinyl smell or other odors. An option is to sprinkle baking soda over the vinyl couch, vacuuming it up the next day. Or you can wipe the couch down with rag moistened with white vinegar.
Sniff an older vinyl couch to pinpoint where the smell is originating. Carefully, remove the cushions or insert your hand between the cushions and slide toward the front of the couch to remove any old food that may be causing the smell.
Spray the vinyl couch with a mild bleach solution made of 1 part bleach and 9 parts water if the surface is what smells. This will disinfect the surface and stop it from smelling. Test the bleach spray in an inconspicuous area first to ensure that it won't fade the vinyl color. After spraying the bleach spray, let it sit for 15 minutes, then rinse it off with a damp rag. This should get rid of most smells.
Dampen a rag with the same mild bleach solution and run it down between the cushions and couch back to clean it. Rinse the area with a clean damp rag. Then, dry the area thoroughly with a dry rag, otherwise a musty odor may form.