Toxic gases such as carbon monoxide (CO) and nitrogen dioxide (NO2) are common around combustion equipment, including generators and vehicles in enclosed parking garages. Natural gas systems introduce combustible hazards such as methane (CH4). In battery energy storage systems (BESS), hydrogen (H2), carbon dioxide (CO2), and electrolyte-related volatile organic compounds (VOCs) may be monitored as indicators of developing thermal runaway. The gases found ultimately depend on the facility, fuel sources, and equipment. Visit our application pages to learn more about the specific hazards found in these facilities.