CO monitoring in parking facilities uses electrochemical or infrared sensors to detect carbon monoxide levels and automatically control ventilation systems. Continuous monitoring ensures occupant safety by triggering increased air exchange when pollutant concentrations rise. This real-time approach prevents accumulation of toxic gases in enclosed parking environments.
Sensor Technology
Electrochemical sensors measure CO in the 0 to 100 ppm range with accuracy of 5 to 10 percent. Infrared sensors offer faster response times and better stability in high-humidity environments. Sensor placement typically includes one monitor per 2,500 to 5,000 square feet of parking area. Response time for reliable detection ranges from 60 to 120 seconds.
System Integration
CO sensors connect to building automation systems that modulate exhaust fan speed based on real-time readings. When levels approach 35 ppm, fans accelerate to increase ventilation. Occupancy sensors combined with CO monitoring reduce energy consumption by preventing unnecessary full-speed operation during low-traffic periods.
Compliance and Safety
ASHRAE 62.1 and EPA standards require CO monitoring in parking facilities with more than 20 spaces. Regular calibration every 12 to 24 months ensures sensor accuracy and regulatory compliance.