You’re being downvoted, but this matches my experience. A depleted can of CO2 gas produces weak carbonation, similar to dry ice. One of the tricks to CO2 canis

You’re being downvoted, but this matches my experience. A depleted can of CO2 gas produces weak carbonation, similar to dry ice. One of the tricks to CO2 canisters is that CO2 liquefies around 6 atm at room temperature, so a canister of CO2 will maintain that pressure until the liquid CO2 is depleted. Dry ice produces about 1 atm of vapor pressure (obviously) which matches the vapor pressure you get when displacing air.