EPA lists a global warming potential of 3,922 for R-404A. What does this imply when comparing equal masses using that GWP metric?
- AR-404A has no warming effect.
- BR-404A can always be released without consequence.
- R-404A has substantially greater warming potential than the same mass of CO2.
- DThe value proves R-404A is suitable for every refrigeration system.
Where to look it up
https://www.epa.gov/hfcs/technology-transitions-gwp-reference-table
Why C is correct
A GWP of 3,922 indicates a warming impact substantially greater than the CO2 reference for equal mass over the metric's time horizon. It is not an equipment-selection approval and says nothing by itself about toxicity or installation compatibility.