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Natural Refrigerants

Natural (or 'Not in Kind') refrigerant products are being used more extensively due to their low impact on the environment.

BOC is the UK's leading supplier of natural refrigerants to the refrigeration and air conditioning industry and has a wealth of experience and expertise in environmentally-friendly refrigerants.

Natural refrigerants are chemicals which occur in nature's bio-chemical processes.  They do not deplete the ozone layer and make negligible (or zero in the case of R-717 ammonia) contribution to global warming. 

Their high efficiency means they make a much lower, indirect contribution to global warming than many synthetic refrigerants.

Going natural

A number of factors will influence your choice of refrigerant.  Natural refrigerants from BOC can satisfy many criteria, such as:

  • regulatory compliance.  Our natural refrigerants are not subject to the Montreal Protocol or F-Gas regulations; they comply with all applicable UK and EU regulations and standards
  • low environmental impact.  They have zero ODP and minimal GWP
  • quality assurance.  Our products and packages comply with highest quality and safety standards
  • high performance.  They demonstrate good thermodynamic properties and COP
  • widespread availability.  Local delivery and collection is available
  • long-term viability.  These items are not subject to phase-out controls
  • compatibility.  BOC natural refrigerants work well with widely available components, oils and other fluids


  • Ammonia (R717)
    BOC offers the highest industry specification for refrigerant ammonia, meeting both the IIAR and ASHRAE specifications.  Read more Read more
  • CO2 (R744)
    Carbon dioxide has been used as a refrigerant since 1850. It is now regaining popularity due to its low environmental impact.  Read more Read more
  • CARE®
    BOC offers a range of high-performance hydrocarbon refrigerant products under its CARE® brand for a wide spectrum of refrigeration and air conditioning applications. These include R290, R600A and R1270.  Read more Read more

Further information
  • natural refrigerants are not generally considered retrofit solutions in existing systems
  • in this increasingly complex industry, BOC's refrigerants team are on hand to provide information and technical expertise on the range of products available
  • we can offer guidance on regulatory matters, product detail and applications
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