
Evenly sprinkle baking soda across cushions and backs, then let it rest for several hours to absorb pervasive odors. Vacuum thoroughly, using slow passes. Follow with a gentle vinegar mist to neutralize lingering notes, then promote airflow with open windows or a fan. Check again after drying, repeating a lighter cycle to avoid oversaturation that can cause rings.

Blot immediately to remove as much moisture as possible. Apply baking soda liberally and allow a longer dwell, targeting both odor and residual dampness. Lightly mist diluted vinegar and let the fizz work, then blot and air dry. Repeat carefully if needed, avoiding heavy wetting that can push contaminants deeper into foam, making later removal more difficult.

Direct a fan across the treated area and lightly groom the pile to keep texture consistent. Rotate cushions so airflow reaches seams and corners. Avoid heat guns that might set remaining residues. If a faint ring appears, feather the area with distilled water and repeat gentle blotting, expanding the treatment perimeter just enough to blend edges invisibly.