Editing Refrigerant (section)

===Most used===
{| class="wikitable sortable"
|-
! Code !! Chemical !! Name !! [[Global warming potential]] 20yr<ref name="ar5"/> !! GWP 100yr<ref name="ar5"/> !! Status !!Commentary
|-
|R-32 HFC-32 ||CH<sub>2</sub>F<sub>2</sub> ||[[Difluoromethane]] ||2430 ||677 ||Widely used ||Promoted as climate-friendly substitute for R-134a and R-410A, but still with high climate impact. Has excellent heat transfer and pressure drop performance, both in condensation and vaporisation.<ref>{{Cite journal |doi = 10.1016/j.ijrefrig.2015.04.017|title = HFC32 vaporisation inside a Brazed Plate Heat Exchanger (BPHE): Experimental measurements and IR thermography analysis|journal = International Journal of Refrigeration|volume = 57|pages = 77–86|year = 2015|last1 = Longo|first1 = Giovanni A.|last2 = Mancin|first2 = Simone|last3 = Righetti|first3 = Giulia|last4 = Zilio|first4 = Claudio}}</ref>  It has an [[Greenhouse gas#Atmospheric lifetime|atmospheric lifetime]] of nearly 5 years.<ref>May 2010 TEAP XXI/9 Task Force Report</ref> Currently used in residential and commercial [[air conditioning|air-conditioners]] and [[heat pump]]s.
|-
|[[R-134a]] HFC-134a
|CH<sub>2</sub>FCF<sub>3</sub>
|[[1,1,1,2-Tetrafluoroethane]]
|3790
|1550
|Widely used
|Most used in 2020 for hydronic heat pumps in Europe and the United States in spite of high GWP.<ref name="BSRIA"/> Commonly used in automotive air conditioners prior to phase out which began in 2012.
|-
|[[R-410A]]|| ||50% R-32 / 50% R-125 ([[pentafluoroethane]])||Between 2430 (R-32) and 6350 (R-125)||&gt; 677 ||Widely Used ||Most used in split heat pumps / AC by 2018. Almost 100% share in the USA.<ref name="BSRIA"/> Being phased out in the US starting in 2022.<ref>{{cite web |title=Protecting Our Climate by Reducing Use of HFCs |url=https://www.epa.gov/climate-hfcs-reduction |website=US Environmental Protection Agency |date=8 February 2021 |access-date=25 August 2022}}</ref><ref>{{cite web |title=Background on HFCs and the AIM Act |url=https://www.epa.gov/climate-hfcs-reduction/background-hfcs-and-aim-act |website=www.usepa.gov |date=March 2021 |publisher=US EPA |access-date=27 June 2024}}</ref>
|}