Welcome to Talking Gas

Get to know your gases with the experts at Crowcon

How it works

Click on a gas to learn more and get access to further resources.

Making the world a safer place

Our Crowcon experts know a thing or two about gases so thought it might be interesting to share some interesting facts with you!

Crowcon’s ‘Talking Gas’ series will share with you some interesting facts and figures about the gases that pose a danger to us. We will also talk about how our products and systems work hard to protect people and the environment from the dangers and help our customers make the world a safer place.

Our Talking Gas series will take you on a journey through the Crowcon periodic table (remember your chemistry classes?) and talk about the famous, infamous and downright weird gases that are all around us. We will also talk about how ensuring you have the right gas detection system in place can protect people and the environment.


The Gases

A new gas will be added every month.

The more knowledge you have, the safer you can keep you workplace – and your employees – so bookmark this page as your gas resource.



Chlorine is a chemical element with the symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature.


Download our chlorine fact sheet and:

  • Discover how to know when you’ve been exposed to chlorine
  • Learn what steps to take to protect your team
  • Understand how to detect, measure and report chlorine


Ammonia is a compound of nitrogen and hydrogen, with the formula NH3. It is a colourless and pungent gas and serves as a starting material for the production of many commercially important nitrogen compounds.


Download our free fact sheet and you can:

  • Know what steps to take if you have been exposed to dangerous levels of Ammonia
  • Understand how to protect your premises and your team from Ammonia
  • Learn how to detect, measure and report Ammonia levels


Oxygen is an essential component for life, consumed during respiration. However, both increased and reduced Oxygen levels can pose a significant risk to life.


Download our free fact sheet to learn:

  • How to identify if you have increased or depleted levels of Oxygen
  • The risks increased and depleted levels of Oxygen can pose
  • How to detect, measure and report Oxygen levels


Hydrogen is widely used in industry. However, it is highly flammable and can cause fire/explosion when mixed, even in tiny quantities, with atmospheric air.


Download our free fact sheet to learn:

  • When and how you might be exposed to Hydrogen
  • The risks increased it can pose to worker safety
  • How to detect, measure and report on Hydrogen levels


Methane is widely used as a domestic and workplace fuel – it is a major constituent of natural gas – and has many industrial applications. However, this non-toxic gas becomes dangerous when it displaces enough oxygen.


Download our free fact sheet to learn:

  • When and how you might be exposed to Methane
  • The risks increased it can pose to worker safety
  • How to detect, measure and report on Methane levels

Find the right gas detector

What gas do you need to detect?

Choose the type of detector and the type of gas below

Single or multi-gas monitors

Can be used for personal monitoring and portable safety applications

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Fixed gas detectors

Are effective as they can be integrated with ventilation control systems

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Control panels

Measure and report the presence of dangerous levels of chlorine and activate alarms/associated equipment

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