NO2 & CO Sensor Installation for Garages in Fort McMurray
Vehicle exhaust gas detection systems for parkades, auto shops and fleet garages. We design, install and maintain carbon monoxide and nitrogen dioxide monitoring with automatic exhaust fan control — keeping your people safe and your building compliant.
Vehicle Exhaust Is an Invisible Hazard in Enclosed Garages
Carbon monoxide is odourless and colourless — by the time someone feels symptoms, levels are already dangerous. Diesel exhaust adds nitrogen dioxide, which attacks the respiratory system at low concentrations. In Fort McMurray's winters, vehicles idle longer and garage doors stay closed, pushing concentrations higher.
A properly designed gas detection system monitors air quality continuously, alarms before levels become hazardous, and automatically brings exhaust fans online — protecting workers, residents, and your liability as a building owner or employer.
Ventilation for acceptable indoor air quality
What ASHRAE 62.1 Means for Garage CO and NO₂ Control
ASHRAE Standard 62.1 is a recognized indoor-air-quality standard used by designers and code authorities when establishing ventilation for commercial and institutional buildings. Its prescriptive path lists 0.75 cfm of exhaust per square foot for parking garages, operated continuously during expected occupied hours. Its performance path can instead support ventilation that varies in response to monitored contaminants when the project design and local code allow it.
Carbon monoxide monitoring addresses gasoline exhaust, while nitrogen dioxide monitoring is important where diesel vehicles may operate. Measuring both lets the controls respond to the actual vehicle mix and changing conditions in each garage zone. ASHRAE does not select the contaminants or prescribe universal ppm setpoints for this performance approach; those details belong in the project-specific mechanical design and applicable Alberta requirements.
ASHRAE 62.1 design approach
How garage air-quality control works
Vehicle exhaust
Gasoline and diesel vehicles release different combustion contaminants while starting, idling, and moving.
CO + NO₂ sensors
A zoned sensor layout continuously samples the occupied garage instead of relying on one point near a fan.
Control sequence
The panel compares readings with the engineered setpoints, checks faults, and calls the required fan stage.
Exhaust + make-up air
Interlocked equipment removes contaminated air and replaces it without creating harmful pressure imbalance.
Alarm + safe response
High readings or a system fault can trigger visible and audible alarms for investigation and corrective action.
Sensor coverage
Placement accounts for floor area, airflow, ramps, entrances, dead zones, obstructions, and the sensor manufacturer's instructions.
Staged ventilation
Controls can start, stage, or modulate exhaust and make-up air so the response matches the monitored condition.
Fail-safe operation
Sensor trouble, communication loss, and fan status are considered so a hidden fault does not leave the garage unprotected.
Commissioning records
Testing confirms sensors, relays, fan interlocks, alarms, and control sequences operate together before turnover.
Important design note: ASHRAE 62.1 does not provide one universal CO or NO₂ alarm setpoint for every garage. Final ventilation rates, sensor locations, stages, alarm levels, and delays must follow the adopted building and mechanical codes, the engineer's design, the authority having jurisdiction, equipment instructions, occupancy, and actual site conditions. Auto-repair rooms may also require continuous exhaust during expected occupancy rather than being treated like a parking garage.
Gas Detection for Every Type of Garage
From condo parkades to heavy-duty fleet shops, we size and install systems for your exact space and vehicle mix.
Underground Parkades & Condos
Multi-level residential and commercial parkades need continuous CO and NO2 monitoring with demand-controlled ventilation to protect residents and control fan energy costs.
Auto Repair Shops & Dealerships
Vehicle exhaust in service bays contains carbon monoxide and nitrogen dioxide. A fixed gas detection system protects your technicians and keeps your shop compliant.
Fleet & Maintenance Garages
Bus barns, trucking shops, municipal fleet garages and fire halls where diesel and gas vehicles idle indoors for extended periods.
Complete CO & NO2 Detection Systems
Equipment option
Honeywell E3SAH E3Point Toxic & Combustible Gas Monitor
The E3SAH is the 120 V surface-mount E3Point base for commercial gas monitoring. With the correct replaceable cartridge, the platform can monitor carbon monoxide or nitrogen dioxide and provide local display, audible alarm, relay control, and a 4–20 mA signal for ventilation or building controls.
We confirm sensor type, mounting location, control sequence, equipment condition, and current product availability before specifying an E3Point installation or upgrade.
Demand-Controlled Ventilation Built In
We interlock your gas detection panel with exhaust fans and make-up air units, so ventilation runs only when CO or NO2 levels rise. You get code-compliant air quality without paying to heat and move air around the clock — a major saving in northern Alberta's climate.
Get Your Garage Assessed
We'll review your garage or parkade, recommend the right CO/NO2 sensor layout, and give you a clear installed price.
