Oxygen (French: Oxygène) is a 2021 French-language science fiction thriller film, directed and produced by Alexandre Aja, from a screenplay by Christie LeBlanc. Synopsis: A woman awakens in an airtight medical cryogenic unit, and discovers that she is trapped and that the unit's oxygen levels are falling rapidly.

References:
https://en.wikipedia.org/wiki/Oxygen_(2021_film)