A possible nitrogen leak at the Intel facility in Chandler left workers in a dangerous situation Saturday morning.
A dozen people were taken to the hospital.
"At approximately 6 a.m. this morning we were notified of the release of a exhaust by product," said Intel spokesman Jason Bagley. "This was isolated to a particular tool that is in the cleaning room space factory."
43 Intel workers dealt with breathing trouble, nausea and irritation to their skin and eyes after nitrogen leaked in a utility space inside the Intel building at Queen Creek and Dobson.
12 of them ended up going to a hospital.
"Luckily it was identified right away and it sounds like that a lot of our patients were in the area, but no one was in really close contact with the chemical," said Tom Dwiggins, with Chandler Fire Department.
Chandler and Phoenix firefighters worked with emergency response teams from Intel.
"One of the things that we have with Intel is we have a very good relationship with their emergency response team so when we do get on scene we do work with them. They know they're the experts, they know their facility, they know the products," said Dwiggins.
Fortunately, Intel's air scrubbing system kicked in and quickly brought fresh air into the building.
Everyone who was exposed to the dangerous gas is expected to be okay.
"Our top concern is the individuals. We go to great lengths to ensure a safe work environment," said Bagley.
The area of the building is still not being used.
Manufacturing has been moved elsewhere until the problem can be fixed to make sure everyone is safe.
The cause of the leak is still under investigation.