A Refrigerant is a fluid/gas/liquid that is employed in the Air Conditioning systems and Refrigerators.

Without refrigerant, Air Conditioners, Refrigerators or any other freezing technology will not be possible.

ACs contain the refrigerant inside the condenser coils.

The Refrigerant absorbs the heat from the room and leaves the hot air out in the environment.

As refrigerant absorbs heat, It undergoes state changes from liquid to gas. When the compressor compresses, it transitions back to liquid.

RefrigerantGlobal Warming PoetentialOzone Depletion Potential
R 221810Medium
R 410A2088Nil
R 32675Nil
R 134A1430Nil
R 2903Nil
R 600A3Nil

Types of Refrigerants

Let’s have a look at most common refrigerants used in ACs over the years.

Chlorofluorocarbons (CFCs)

The Making of CFCs including R12 is discontinued in 1994 as the CFCs are one of the main reasons for greenhouse gas effect and depletion of ozone layer.

Hydrochlorofluorocarbons (HCFCs)

R-22 is the most common refrigerant that is used in the air conditioners. In the late 1990s, the CFCs were replaced by Hydrochlorofluorocarbons. R-22 is the refrigerant that is used in more than 50% of Air Conditioners in India (As of now).

R-22 is just slightly better than CFCs. But, It is also harmful to the environment and also has ozone depletion potential. HCFCs including R22 will be phased within 4-5 Years.

When you are buying an AC or Refrigerator, have a look at the exterior component. If R-22 is mentioned on it, Do not opt for it. R22 is a refrigerant that is outdated and harmful to the environment.

Hydrofluorocarbons (HFCs)

HFCs (R-410A, R-32, and R-134) are better than HCFCs and do not deplete the ozone layer. But, they also have the potential for global warming.

Please note that R-32 is better than R-410A regarding Global warming. Even the HFCs like R-32, R-410A are also not environment-friendly, but they are a lot better than R-22.

AC Refrigerants

Our Indian Government is also planning to phase out Hydrofluorocarbons in the coming years.

Hydrocarbons (HC)

As of now, the most environment-friendly refrigerants available for Air Conditioners in India are R-290 (Propane) and R-600A (Iso-Butane). The Global warming potential of R-290 is 3 and R-600A is 3, and both of them have zero impact on the ozone layer.

Both R-290 and R-600A refrigerants are energy efficient and are the greenest refrigerants. The Hydrocarbons and Hydrofluorocarbons are highly flammable.

Most of the top Refrigerators in India are already using R-600A, and there are no accidents were reported. Now, most of the users are asking for Inverter Air Conditioners and AC’s that have little impact on the environment.

R-290 and R-600A are the new age environment-friendly and energy efficient refrigerants.

Daikin, One of the Leading AC manufacturer, is using R32 refrigerant which has GWP (Global warming potential) of 675. The R32 Refrigerant has three times lower GWP than R410A (2088). R32 is also more energy efficient than R410A.

Now, Other companies like Mitsubishi, Hitachi, Panasonic, Toshiba, Sharp and Fujitsu General are also using R32 Refrigerants in their Air Conditioners.

Godrej NXW inverter series AC’s use R290 greenest refrigerant that has the lowest impact on the environment. Godrej had sold over one lakh R290 units in India.

People who have seen the 1980s and early 1990s will vouch for the fact that the climate was far more stable than it is now. Today, you have erratic climatic behaviour with the summers getting warmer than it was in the 1980s. There is also talk about the water levels increasing in the oceans.

You can attribute the reason for all these changes to one factor, ‘Global warming.’ One of the prominent reasons for global warming is the depletion of the ozone layer.

Causes of depletion of the ozone layer

There are various causes for the depletion of the ozone layer such as vehicular emission, increase in environmental pollution by industries, and the rampant use of chlorofluorocarbons (CFC) in air conditioners and refrigerants.

However, over the past decade, there is a gradual phasing out of the CFCs from the domestic and industrial scene. There is more emphasis on manufacturing environmentally friendly devices.

Our Responsibility

ECO Friendly ACWe have a responsibility to secure the future of the coming generations. Reducing global warming and eliminating ozone layer depletion should be our endeavour.

To achieve this objective, you should start using ACs and refrigerators using environment-friendly refrigerants like R-290 and R-600A respectively.

As people begin using these appliances more, the demand for such ACs and refrigerators will increase.

It will prompt manufacturers to switch over to these refrigerants from the CFCs, HCFCs, and the HFCs. It will benefit the environment as a whole.

R-290 and R-600A are the future of Refrigerants. If you are looking to buy an Air Conditioner, Make sure you opt for the model that is not only energy efficient but also eco-friendly.


  1. which is Stabilizer free operation, Himalaya Cool, Micro Dust Protection Filter(3M), Gold Fin Condenser, Auto clean, Energy saving mode, Low refrigerant detection, Monsoon Comfort, Refrigerant: R-410

  2. Dear Chaitanya,
    Thank you for the useful information. I need two split ACs. *1.5 and *2 ton) The high priority is environment-friendly gas; optimum dust filters (Filter clean indicator Self cleansing filter Multiple Filters for Clean Air • Anti-dust feature); max anti corrosive features; Auto humid control; high EER ratio & best in class cooling with easy maintenance. What would be your suggestions, considering the city of Noida.
    Thank you

  3. I have already a non inverter ac.these non Inverter ac running time our voltage is flagchuate repeatedly.can I buy a inverter ac for my second room.i am confuse about the flagchuation of voltage.inverter is working in voltage flagchuation or not.

  4. Hi Mr Kumar,
    Thank you for this information.Happen to read your blog right in time on my search for a eco friendly AC.

  5. i purachase voltas ac spilt ac ordinary model not inventer model but gas r410a gas its ok? ordinary model vs inventer model whis is model better pls give answer urgent

  6. Proud of u bro with such a imp mess in simple words u had explained and taken the efforts and guts to put up the complete internal details ull be blessed by each and every person who reads and get the information thank you and a special thanks for environment concern message.

  7. Hey V S Chaitanya, happy to see someone helping us with info regarding eco friendly AC products, I am looking for 1 ton 5 star Inverter AC with R-32 coolants, can you please suggest me the models…..

    • Hi There, Checkout the below 5 Star Inverter models with R32 Refrigerant.

      Daikin-FTKF35TV16U, Daikin-JTKJ35TV16U, Mitsubishi Electric-MSY-GN13VF. You can also have a look at Godrej-GIC 12 BAH 8 GGQG with R290 Refrigerant.

  8. also why don’t they design acs/fridges using peltier modules, no question of ozone, fire safety, gas charging etc.

  9. I have an air condition with R32 that i need to service, but this type of gas is not readily available in my country. Can i use the R410 gas for the air-condition.

  10. My earlier split A/c is using R22 and I need to replace the same now. Since pipes are concealed, I would like to use same copper pipes, can I buy new A/C with different type of refrigerant? If no, which split A/C models are available in market having R22?

  11. I am looking for 5 star inventor 1 & 2 ton split ac which have copper condenser, having R32 Air Conditioner Refrigerants and advance features. Budget is not barrier. Please suggest which I can buy ?

    • R32 is a better Refrigerant than R410A and R22. You can have a look at the below energy efficient 1 Ton and 2 Ton Models with R32 refrigerant.
      1 Ton Models
      Daikin (FTKF35TV16U, JTKJ35TV16U, CTL35TV16W1, FTKG35TV16W, ETL35TV16W1, GTL35TV16W1, FTL35TV16W1S)
      Blue Star-5HW12SBTU, Mitsubishi MS-GL13VF
      2 Ton Models
      Daikin-FTKF60TV16U, JTKJ60TV16U, FTKG60TV16U, FTKP60TV16U
      Blue Star-5HW24AATX, 5HW26AATU

  12. Very Good Site with lot of information…… 🙂
    Can you please suggest some INVERTER SPLIT AC brand/models with R290 or R600A Refrigerant, fully copper coiled, with star rating 5 (or now become 3, in 2018 iSEER?). Is it worth banking on 10 / 9 year compressor warranty or many functions like auto clean etc.. ..

    • As of now, Only Godrej Manufactures NXW Air Conditioners with R290 Refrigerant which is eco-friendly. But, the Condenser is Aluminium. Copper tubes that can handle R290 are not available in India. But, they provide Gold fin Anti Corrosive nano-coating for the condenser fins (Anti-rust coating).


      Godrej is also launching a new model (GIC 12 BAH 8 GGQG) which has EER of 6.15 and R290 Refrigerant. I am not sure if it comes with a Copper or Aluminum Condenser. All the new models will be launched in the market by the end of this month and we will update the list.


      Daikin has also launched JTKJ35TV16U model that has EER of 5.8. AC Functions like Dust filters, Auto Clean, Bacterial filters are required if you live in a city as the dust pollution will be on the higher side. Also, Corrosion Protection is required if you live near to sea or a water body.

  13. R410a Refrigerant is more energy efficient than R-22. Also, R-22 is Getting Banned and none of the AC Manufacturers are using R-22 in their new models. Some Retailers are taking advantage of this and recommending users to buy R-22 Air Conditioners to sell their Stock. Also, R-22 have Ozone Depletion Potential. R410a also have an impact on the environment but it is better than R-22.

    • “R410a Refrigerant is more energy efficient than R-22.”
      Really? At least in the US, I remember hearing that they created new measures of efficiency to bolster the numbers once they had R410a because it only does well with outdoor temps of ~80 degF and struggles to cool efficiently when nearing 100 degF and beyond. Fortunately, the world is starting to see that hydrocarbons are the future. R290, R600a, and blends of the two beat out even R-12/R-22 in terms of vent temp and energy efficiency and have no properties that worry environmentalists. I know India already has some window AC units using R290, and we in the US should have some of those soon because of Obama’s SNAP program.

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