The centre was evacuated Sunday
The Vollmer Culture and Recreation Complex in LaSalle will be today after an emergency evacuation Sunday afternoon.
Just before 2pm, alarms in the arena's refrigeration room detected ammonia in the air.
As a precaution, the facility was evacuated and closed immediately.
Windsor Fire fire was called in to complete an air quality test of the entire building.
Air levels in the arena refrigeration room are now back to normal.