... output, 0.4MPa or 0.7MPa high purity air, 2011 new product Oilless Air Generator for Gas Chromatograph,Spectrum and atomic adsorption-- ... preprogrammed automatic control by phase and use the technology of air condensation, separation and purification by step, producing highly pure ... operate quietly and stably, producing quality pure and clean air with the pressure and flow adjustable, which are ideal ...