The Park City Fire District (PCFD) responded to a hazmat spill at the PC MARC around 2 p.m. Monday.
PCFD said its hazmat team was able to get into the building and contain the toxic gas. It derived from a mix of industrial cleaners in a custodial closet.
PCFD said the facility was fully ventilated and cleared. A few employees were evaluated for minor respiratory symptoms.
A MARC employee said the recreational center was able to reopen around 3:30 p.m.