Respiratory article's claims are unsubstantiated.
Parker
Jay A
JA
D005390:Fires; D006801:Humans; D000860:Hypoxia / Q000209:etiology; D009314:National Institute for Occupational Safety and Health, U.S.; D016273:Occupational Exposure / Q000517:prevention & control; D017712:Peer Review, Research; D015203:Reproducibility of Results; D018635:Rescue Work; D012119:Respiration; D012134:Respiratory Protective Devices / Q000009:adverse effects / Q000592:standards*; D014481:United States; D000078329:Workforce