Officials said that although the idea is being considered, some experts have questioned whether extra oxygen would lead firefighters to take more risks.
Chief Dawe said firefighters took about 15 people out of the building who might otherwise have died.
Many firefighters are taking their vacation days from last year; others are on sick leave.
It is an unofficial rank, but one that firefighters take seriously: the senior guy.
Fifty firefighters took about three hours to tackle the blaze.
Police and firefighters took more than an hour to free the bodies from the wreckage.
He said firefighters took an hour to reach the victims.
Some firefighters took children to baseball games and wrestling matches on weekends.
More than 250 firefighters and 62 fire trucks took part in rescue efforts.
Some 70 people, residents and firefighters took part in this drill.