Mold

To remove mold, mildew and their odor from upholstered auto seats, products with peroxide and detergents will restore the car interior. This both removes the stain and deactivates the odor. Simply spray a citrus cleaner product on the soiled area. Wait about five minutes for it to penetrate. Using a clean white absorbent cloth, blot the area, pressing down firmly without rubbing for 30 seconds. Repeat this blotting process until the area is dry. If the stain or odor persists, repeat the process. As an alternative, you could create a cleaning mixture by combining 1/4 teaspoon of color safe bleach and 1/4 cup of 3 percent hydrogen peroxide. With a clean cloth, gently rub the stain until it is gone. Rinse the area with clear, warm water and dry thoroughly.

And be very careful using a ozone generator misuse can make you very sick and can be deadly. Too much Ozone is also hard on plastics and vinyl parts, small amounts of clean water is fine to do a final rinse you just have to make sure you dry it well.

At work I have my contractors use a product called Benefect Disinfectant & Fungicide which is a 100% naturel and has a nice lemon & clove scent:profilel:

And use a specialised HEPA vacuum to clean large moldy areas up.