Creative Oz-Air [I] Pvt. Ltd. Offers PSA Based Oxygen and Nitrogen Plants. Creative Oz-Air [I] Pvt. Ltd. Is an ISO 9001: 2000 accredited company. Specifications of Oxygen Plants: Capacities - 1 to 200 NM³/hr. Output - 0.5 - 2.5 Kg / Cm² Purity - 93 - 99.9% Specifications of Nitrogen Plants are: Capacities - 1 to 150 Nm³/hr. Output Pressure - 5.0 - 6.0 kg / Cm² Purity - 50% to 99.999%