The air conditioning system must also be checked regularly and used in accordance with the recommendations. In addition, the air conditioning filter needs regular cleaning. Otherwise, he can not only reduce the effectiveness of his work, but also become a source of diseases of the driver. This is possible due to the concentration in the system of conditioning of pathogens of microorganisms. At the same time, independent preventive work with air conditioning is extremely dangerous, as they can lead to the failure of its elements.