Are You in the Market for a Gas Generator?

Find out what respondents' most sought-after features are when choosing a laboratory gas generator and more in our latest survey results

By Andrea Cole

In many laboratories, gas generators are quickly replacing traditional tanks, offering greater flexibility, convenience, safety, and cost-effectiveness. Gas generators offer the ability to produce on-demand supply and specialty blends of highly pure gases for various applications.

Top 6 Questions You Should Ask When Buying a Gas Generator

  1. What is your application? As the range of available gas generators continues to expand, consider what it will be used for. For example, Fourier transform infrared spectroscopy operates best in the absence of carbon dioxide, so users will require a generator that creates CO2-free gas
  2. Do you require high quality gas? In many cases, gas generators can produce a superior product both in purity and consistency without the risk of contamination during gas-line changing.
  3. What volume of gas do you require? Many instruments now require higher volumes of gas. If your space is small, or you expect your needs to increase over time, you may wish to consider a gas generator that will take up much less space than storing tanks of gas.
  4. Are long-term cost savings important to your project? Beyond convenience, gas generators save on shipping costs, time-related costs for changing tanks, and managerial costs for managing the safety and supply of tanks.
  5. Is noise a factor in your lab? Noise can be both bothersome and present a real health concern for those exposed. If low-noise is desirable, consider a gas generator with detachable or low-noise compressors. 6. What sorts of service agreements are available? Is training in self-maintenance sufficient, or are service representatives available?

Gas generator types used by survey respondents:

Nitrogen 46%
Hydrogen 35%
Zero Air 26%
Calibration 5%
Purge 3%
TOC 2%
Other 32%

Of those respondents interested in purchasing a new gas generator, the reasons for these purchases are as follows:

Cheaper than gas cylinders 38%
Increase safety 11%
Upgrading old system 11%
Starting a new lab process 8%
Switching from helium to hydrogen 5%
Building/renovating lab 2%
Other 26%

Top 10 features/factors respondents look for when purchasing a gas generator:

Performance of product 78%
Low maintenance / easy to clean 71%
Safety and health features 68%
Value for price paid 64%
Availability of supplies and accessories 62%
Total cost of ownership 60%
Low operating costs 60%
Warranties 59%
Service and support 58%
Footprint/size 46%

For more information on gas generators, including useful articles and a list of manufacturers, visit

Categories: Surveys

Published In

Human Resources Magazine Issue Cover
Human Resources

Published: October 11, 2018

Cover Story

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