The most effective way to eliminate vomit smell from a car is to immediately remove the solid waste, thoroughly clean and disinfect the affected area with an enzymatic cleaner designed for biological stains, and then neutralize any lingering odors in the upholstery and cabin air. Speed is critical; the longer the vomit sits, the more the odor sets into the fabrics and ventilation system.
Start by putting on gloves. Scoop up any solid material with paper towels. Then, blot—don’t rub—the stain with a clean, damp cloth. The key step is applying an enzymatic cleaner. These cleaners use enzymes to break down the proteins and organic matter in vomit that cause the smell, which standard cleaners often can't remove. Follow the product instructions, allowing it to dwell for the recommended time.
After cleaning, sprinkle a generous amount of baking soda over the entire area to absorb residual moisture and odors. Let it sit for several hours or overnight, then vacuum it thoroughly. For persistent odors, you may need to use an ozone generator, a powerful device that oxidizes odor molecules. However, ozone generators must be used with caution in an enclosed space and are often a service provided by professional detailers.
| Cleaning Step | Key Product/Technique | Purpose | Important Consideration |
|---|
| Initial Cleanup | Paper Towels, Damp Cloth | Remove solid waste and surface residue | Blot, do not rub, to prevent pushing vomit deeper. |
| Deep Cleaning | Enzymatic Cleaner | Break down proteins and organic matter at source. | Allow for proper dwell time (e.g., 15-30 minutes). |
| Odor Absorption | Baking Soda | Neutralize lingering odors in upholstery. | Let sit for at least 4-8 hours before vacuuming. |
| Airborne Odor Removal | Ozium Spray or Cabin Air Filter Change | Eliminate odor particles in the cabin air. | Ozium is a glyoxal-based spray that neutralizes odors. |
| Professional Treatment | Ozone Generator | Oxidize and destroy deep-seated odor molecules. | Requires professional use; unsafe for occupied spaces. |
Finally, replace your cabin air filter, as it can trap foul odors and recirculate them every time you run the AC or heat. Preventing the smell from becoming permanent requires a methodical approach targeting both the source and the air.
