The high purity of N2 is produced by using a deoxidization device with adding proportional hydrogen. CAY N2 purifier can be added to existing nitrogen systems. It is high purity of N2 at a minimum cost. Product nitrogen quality: Oxygen content ≤1ppm, Dew point ≤-65°C Hydrogen residual ≤1000ppm. Features: *Automatic control *High efficiency and low cost *Closed-loop temperature controls *Simple and easy operation.http://www.cangas-systems.com