The call first came shortly after 10am Local Time (1pm ET) on Saturday.
"It was originally reported that "Someone tried to commit suicide with the help of chemicals. We cannot confirm that it is suicide. There is one death," Matlow said.
In addition to the six people taken to the hospital, a group of other people complaining of minor symptoms including lightheadedness, weakness and shortness of breath were evaluated and treated locally.
Hotel floors 18 to 20 of Fairmont were evacuated, Matlow said. The woman's mortality was discovered on the 19th floor. It's not clear how long she was dead or at the hotel.
Firefighters in response to the accident brought their own bottles of air to prevent & # 39; should not breathe the air in the room. The smell is compared to broken eggs, Matlow said.
"What they smelled made them want to move to the next level of protection is less comfortable," he said, explaining that firefighters have changed into suits that do not absorb chemicals.
Crews are still working Saturday afternoon to identify the chemical involved, Matlow said. Their "goal is to identify the chemical and create a plan for decontamination of the premises or premises," he said.
"There was fluid on the floor of the room and on the hob," Matlow said. "Whether it is a mouthwash or hazardous chemicals, it will be determined by chemical testing. Every puddle in the room will need to be tested."
Matlow said there was no risk of explosion in the room.