Dryers / processors the system reduces the concentration of co co2 nox and so2 gases.The packages are available in simple and duplex combinations the system has also an inbuilt dew point temperature sensing device which continously displays the dew point temperature and provides an alarm when the system does not meet the desired level of dryness.It also incorporates the safety for fall in outlet pressure alongwith an alarm the package is also provided with an indicator that informs the user that the dryer needs service or the filter elements need replacement.In the duplex package each of the two dryers and two filters sets can be independently isolated for service.These ensures highly purified air.