UltraGen® iGen N235 and N235Z Nitrogen Generators produce laboratory-grade nitrogen on demand using proven membrane separation technology and integrated compressors. 

The iGen DGN2A, QDS, and Duo+ Dual Gas Generators provide independent sources of nitrogen and zero air. The iGen TriGas lab generator  produces three types of gas for liquid chromatography-mass spectrometry (LC/MS) instruments: nitrogen, zero air, and dry air.