Nitrogen is an odorless and colorless gas that is commonly used in cryotherapy treatments.
The client is fighting for their life at the nearby Lariboisiere hospital.
Three people who attempted to revive the employee were also hospitalized.
All 150 people at the gym were evacuated following the accident.
The facility has been closed indefinitely.
Inside the cabin, the oxygen concentration then decreases drastically, a2018 report reads.
The low oxygen concentrations could endanger the life of the occupant due to the risk of asphyxiation.
There have also been reported cases of accidents unrelated to asphyxiation or burns.
Even if cryotherapy sessions are very short, they still may be too extreme for some people.
The clinic notes that some benefits of cryotherapy can be achieved without entering a cryotherapy chamber.
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