What are the advantages of spray painting your car with compressed air? To start out with, it could be a real money saver in the long run. Theres an investment needed in the initial purchase of the tools, but once youve it then you begin saving money on your projects from there on in. Other great advantage is youve more flexibility in the use of the compressed air. In nowadays day of age air pollution is a huge issue. Thus, the use of aerosol propellants are frowned upon. The best solution to this is the compressed air sprayer.