Carbon Monoxide (CO)

CAS Number: 630-08-0
Carbon monoxide (CO) is a colorless, odorless, tasteless gas produced by the incomplete combustion of carbon-containing fuels. It is encountered in nearly every industry — from automotive repair and manufacturing to construction, mining, and firefighting. CO binds to hemoglobin with far greater affinity than oxygen, causing carboxyhemoglobin formation and cellular hypoxia. Symptoms range from headache and nausea at low levels to unconsciousness and death at high concentrations. Workers operating combustion equipment, internal combustion engines, or working in enclosed spaces with inadequate ventilation are at serious risk. CO detectors and personal monitors are fundamental tools for worker safety.

Carbon monoxide (CO) monitoring is critical anywhere combustion sources can build up dangerous concentrations, especially in confined spaces and poorly ventilated areas. Rent CO-capable gas monitors from RAECO Rents for confined space entry, warehouses using propane forklifts, parking garages, and maintenance work around fuel-burning equipment. Gas monitors are bump tested or span calibrated on the day of shipment, and our team can help confirm the right monitor, alarms, and setup for the job, with fast turnaround and phone support so you can get reliable field readings quickly.

Regulatory Exposure Limits

As of March 17, 2026

OSHA PEL
TWA: 50 ppm (55 mg/m³)
STEL: N/A
C: N/A
NIOSH REL
TWA: 35 ppm (40 mg/m³)
STEL: N/A
C: 200 ppm (229 mg/m³)
ACGIH TLV
TWA: N/A
STEL: N/A
C: N/A
Showing 1 - 14 of 14 products
Heating, Ventilation & Air Conditioning (HVAC)

VelociCalc 9565 by TSI - Advanced Multiparameter Ventilation Meter

Indoor Air Quality

TSI Q-Trak XP 7585 - Indoor Air Quality Monitor

Indoor Air Quality

EVM-7 by TSI Quest - Indoor Air Quality Monitor

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