The origin of the smell is caused by fungus, bacteria and other microbes growing inside the evaporator (cooling radiator), which is fitted behind your dashboard. This damp/wet environment is very conducive to the growth of these organisms, the problem has increased since the evaporator nowadays are made smaller as car manufacturers downsizing components to save space and weight, these smaller evaporators are designed with more fins and packed closer together to increase the efficiency. This in turn has made it more vulnerable to trap moisture that contributes to the growth of these organisms. Using the latest research, tools and equipment we can offer a full odour removal service.