Zero Gas Generator

Vasthi Instruments are global leaders in manufacturing of Zero Gas Generator and have been supplying instruments to customers worldwide, Our multidisciplinary team of scientists, physicians, engineers, and regulatory consultants with decades of global experience brings you the quintessential mechanism that provides complete safety accuracy and durability.


Zero gas generator to provide clean, dry zero-air equipment. Mainly used for ambient air quality monitoring system and the zero calibration of the instrument, Zero Gas Generator can also be used as penetration tube furnace cleaning gas or supporting gas equipped with FID analyser.

Zero gas generator comprises an external oil-free air compressors, pressure and flow controllers, water removal systems, SO2.. NO.. NO2.. 03 and H2S removal, and removal of CO and hydrocarbons.

Zero gas generator is based on principles such as adsorption, filtration, reaction, except for SO2 in the air … NO.. NO2.. 03.. H2S.. CO.. NH3, hydrocarbons and particulate output dry clean air.

Equipment removal system moisture in the air can be removed, producing less than one 20T dew point of the air, not under the influence of inlet air dew point. Also contribute to the removal of other gases, greatly prolongs the life of chemical remover.



  • Using three-stage water system, automatic water, in addition to strong water with long-term SO2.. NO.. NO2.. 03 and H2S
  • Removing with high efficiency removal of CO and hydrocarbon
  • Maximum output of zero flow up to 20 L/min
  • Produced by dry, clean, stable flow and pressure
  • Model: V.AIR – 9008

Technical Specifications




20 LPM @ 30 PSI

Dew point

-20 °C 15 LPM; a, 0 °C and above 15 LPM

Output concentration

SO2 < 0.5 ppb

NO < 0.5 ppb

NO2 < 0.5 ppb

O3 < 0.5 ppb

CO < 0.01

CH4 < 5 ppb

Total non-methane hydrocarbons <0.02 ppm


External, oil-free, life

Dimensions (height x width x length)

53.5 cm x 42.5 cm x 17.5 cm


14 KG

Power Supply

200-240V, 50/60Hz, 400w