| Principle | N2 Gas | Zero Air | H2 Gas |
| Moisture | < 5ppm | < 5ppm | < 5ppm |
| Oxygen | < 5ppm | - | < 5ppm |
| Total Hydrocarbon (THC) | 0.5 ppm | 0.3 ppm | 0.3 ppm |
| CO & CO2 | < 2ppm | < 2ppm | < 2ppm |
| Purity | UHP | UHP | UHP |
| Micron particles | 0.01μ | 0.01μ | 0.01μ |
| Capacity of NHZA-03A | 200 ml/min at 5kg/cm2 | 1500 ml/min at 5kg/cm2 | 300 ml/min at 5kg/cm2 |
| Air Compressor | Inbuilt | Inbuilt | NA |
| Method of Purification | Pressure Swing Adsorption and Depressurization | Catalytic conversion Filtration | PEM Technology |
| Room Temperature | 10°C to 25°C | ||
| Start up time | 2hr/programmable by timer | 10 min | 30 min |
| Electrical Supply | 230 V AC, 50Hz, 1ph, 5 amp | ||
| Size of the 3 in 1 Generator | 1100 H X 350 W X 600 D mm | ||
| Weight (approx.) | 90 kg | ||
| Power Consumption | 600W | ||
| Gas Outlet Port | 1/8" OD | 1/8" OD | 1/8" OD |