Refrigerant Comparison Tool
Compare two refrigerants side by side by GWP, safety class, refrigerant type, composition, typical applications and low-GWP transition role.
Technical differences without a “best refrigerant” shortcut
Use the tool to understand where two refrigerants differ. Final selection still depends on the exact system, application, equipment approval, safety standard and jurisdiction.
Choose two refrigerants
Select any two supported refrigerants. Results update immediately; use Compare to save the selected pair into the page URL.
Build your comparison
Default: R410A vs R32. You can also open a preselected pair with ?a=r410a&b=r32.
R410A vs R32
| Parameter | Refrigerant A | Refrigerant B |
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GWP comparison
The bar chart compares 100-year GWP values using the Refrigerants.net reference basis. GWP describes direct refrigerant climate impact, not total system lifecycle performance.
GWP reference values can differ across scientific assessment reports and regulatory programs.
Open CO₂e CalculatorSafety, replacement and application fit
These interpretations are deliberately cautious. The tool does not infer retrofit approval from similar pressure, GWP, refrigerant family or application labels.
Safety classification context
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Explore Refrigerant Safety →Replacement / transition context
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Explore Replacement Guides →Use regulation pages for the legal question
This tool compares refrigerant attributes. It intentionally does not issue a country-specific compliance verdict because rules vary by jurisdiction, application, equipment category and date.
Regulatory transition check
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Popular refrigerant comparisons
Use the interactive tool for quick screening, then open a dedicated comparison page for application-specific context.
Compare two major sub-700-GWP HVAC routes.
Open comparison → HVAC Transition R32 vs R410ACompare installed-base R410A with R32 new-equipment context.
Open comparison → Heat Pumps · Safety R290 vs R32Compare natural A3 and fluorinated A2L technology routes.
Open comparison → Automotive AC R134a vs R1234yfCompare GWP, A1 vs A2L safety and vehicle compatibility.
Open comparison →How to read the comparison data
The tool uses a consistent site-wide reference basis and conservative engineering language. Application presence does not mean automatic legal approval in every market.
Primary GWP reference basis for HFCs, blends and low-GWP substitutes. R22 uses EPA's AR4 ODS reference value.
Open EPA reference →Refrigerant numbers, single-component identities and blend compositions used for the technical comparison.
Open ASHRAE reference →A1, A2L, A3 and B2L labels describe safety classification, not universal system approval.
Open EPA SNAP →Need help interpreting a refrigerant comparison?
Use the Refrigerant Finder for application screening, or discuss refrigerant selection, low-GWP transition, sourcing, safety and leak-detection requirements.