Jersey City, NJ –
Two Jersey City EMTs…walked into the Burger King on Route 440 in Jersey City and their portable carbon monoxide detection devices began to sound…evacuated the restaurant and notified the fire department…The devices are worn by all EMTs and paramedics at JCMC and was implemented back in 2011.”
https://www.nj.com/hudson/2015/08/emts_walking_in_for_lunch_find_high_levels_of_co2.html