asphyxial
/ˌæsfɪkˈseɪl, ˌæsfiˈksɪəl/Definitions
1. adjective
relating to asphyxia or the state of being asphyxiated; causing asphyxia
“The asphyxial conditions in the closed room made it difficult for the rescue team to enter.”
2. noun
a state of asphyxia
“The doctor warned the patient about the risk of asphyxial complications during the surgery.”