Parker domnick hunter produces Midigas low output Pressure Swing Adsorption (PSA) generators in 3 different sizes. Their nitrogen production varies from 0.5 to 33 cmh, depending on purity and pressure. They are designed for small size nitrogen consumers, especially for cylinder nitrogen replacement. With over 1 cylinder per week consumption, it is renumerative to change to a generator source. Nitrogen purity can be selected between 95 and 99.999%, adjusting to technology demand and cost optimization. The higher the purity is, the greater the air consumption. Outlet nitrogen pressure is 4.5-10.5 bar g depending on inlet air pressure.