Spiffy SHIELD is a two-phase solution that disinfects bacteria and viruses, including COVID-19, on the hard and soft surfaces of your vehicle as well as the ventilation system. It provides future antimicrobial protection for 3 months by inhibiting the growth of microorganisms that act as hosts to viruses. The included portable air compressor and sprayer apply both phases of the Spiffy SHIELD treatment, which adhere to surfaces via a fine mist.