Possible Dangers Of Refrigerant R744

WARNING: This page is about a different car, the 2022 Volkswagen ID.4 and 2021 Volkswagen ID.4. However, it is still accessible from the selected car via links, so may be relevant.

Carbon dioxide is a naturally occurring gas. It makes up approximately 0.039 % of the surrounding air and in its gaseous state, it is colorless and largely odor- and tasteless. This makes it undetectable to human sensory organs.
Fluid evaporating quickly can cause frostbite.
Carbon dioxide in its gaseous state is approximately 1.5 times heavier than the surrounding air. As a result, it collects in low-lying areas, such as work pits, cellars, etc. It can linger there for many hours if there is little air circulation.
Carbon dioxide is not considered to be poisonous; however, higher concentrations in the air (3 -5 %) can cause headaches, light-headedness, dizziness, drowsiness and nausea.
Concentrations over 5 % can cause loss of coordination and unconsciousness.
Concentrations over 8 % can cause respiratory arrest and death.