These days, refrigerators are found in almost every home and have become a member of the family. A home without a fridge appears to be lacking. For several days, the refrigerator keeps vegetables, meals, and drinks cool and fresh. You may wish to find the best refrigerator in India to keep your fruits, vegetables, meals, and beverages safe and cool.

Have you ever considered what keeps the air in your fridge cool and frozen? Do you know how a refrigerator preserves all of your selected items safe and sound? If not, you've come to the proper place.

Actually, the coolant gas is in charge of doing all of the functions. We, at Refrigerator Guide, are here to provide you the relevant information on the coolant gas, its history, and which gas is used in fridges nowadays.

Refrigerant Gas

Coolant gas is a chemical gas with very low evaporation rates that is condensed under pressures to cool the air around it. As a consequence of the repeated evaporation and condensation processes, all of the warmth in the machine is removed, and the temperature within the device is cooled.


In the beginning, from 1800 until 1920, only hazardous gases were employed in fridges. Chlorine, fluorine, and carbons were present in these gases. However, it was found around the year 1970 that these harmful fumes were getting detrimental to the atmosphere.

The greenhouse effect and ozone degradation are caused when these gases seep into the air and experience a chemical change due to the sun's Ultraviolet radiation. Following that, steps were conducted to identify refrigerant gases capable of solving the situation.

It was at this point that coolant gases such as HCFC (hydrogen, chlorine, fluorine, and carbon) and HFC (hydrogen, fluorine, and carbon) entered the scene. When HCFC gases are released into the air they have a limited lifetime and so cause very little ozone depletion.

Gases such as HFC, on the other side, do not contain chlorine and hence have no detrimental or adverse impact on the subject of ozone depletion. This is also why these HCFC and HFC gases are becoming more prominent as advanced coolant gases.

Gases Used in Refrigerators Nowadays

We now live in a period where, thanks to technological breakthroughs, we can strike a necessary balance between meeting our demands and protecting the environment. Many advances in people's lifestyles have aided in the betterment of the nearby environmental conditions.

The usage of better and more specified refrigerant gases is one example of a noticeable development in the same way. While the previous refrigerant gases were highly hazardous to the atmosphere because of their ozone depletion effect, the new coolant gases have been carefully chosen.

These gases are designed to provide the necessary assistance for the fridge to work at its optimum while also maintaining the atmosphere's balance. Here are the most common gases that are being used in modern refrigerators.

1. Tetrafluoroethane

It is among the most widely utilized refrigerant gases, and it can be found in practically all modern refrigerators. This gas is properly condensed so that it can chill the device's surroundings without triggering ozone depletion.

This gas was first used in practically all machinery and kinds of equipment in the early nineties, and it is still in use today. It is easily accessible and helps to prevent ozone depletion to the greatest extent possible.

2. Chlorofluorocarbon

This is yet another gas that is commonly employed in refrigerators nowadays. It's a compressed liquid that expands into gas to capture heat and reduce the temperature inside the refrigerator. The hot gas is pushed through the compressor once more to remove heat before being compressed and utilized as a liquid.

Chlorofluorocarbon was first used in refrigerators in the early 1970s, and several manufactures still utilize this coolant gas in their appliances.

3. Acrylonitrile

This efficient insulator can be found in some advanced freezers, acting as an ideal barrier between the ambient warmth and the appliance's interior. This insulator is very simple and convenient to clean, making it a popular choice for use. Acrylonitrile was first used in the nineteenth century, and it is still used now.

4. Polystyrene

It is a common insulator that is utilized as interior padding in refrigerators to keep warmth out of the appliance. It has the advantage of being less expensive and acting as an excellent barrier between the outside heat and the fridge interior.

As a consequence, the fridges inside temperature rises, making it easier to supply efficient cooling. Polystyrene was first employed as a refrigerant substitute in the nineteenth century.

This was some of the pertinent data on the efficient and common gases employed in refrigerators to get the intended results. With the arrival of each gas, not only did the refrigerator's operation become more sophisticated, but it also assisted to maintain the finest possible environmental balance.

We expect that this guide would have clear your thoughts about refrigerant gases. Mostly, all refrigerators use Tetrafluoroethane as a coolant gas. To get more details about refrigerators, make sure to visit us regularly, which will enable you to keep your refrigerator in perfect condition.