In Laval’s industrial sector, even a minor ventilation issue can quickly escalate into a major health hazard. At AirGreen, we were recently called in on an emergency basis by a local company facing a critical situation: chemical fumes were building up in their production area, causing alarming symptoms among several employees. This intervention showcases our expertise in specialized HVAC ventilation, and proves just how life-saving a properly designed system can be.
An emergency call in Laval: worrying signs of occupational poisoning
The case began with a call from the operations manager of a manufacturing company in Laval. Several staff members were experiencing headaches, eye irritation, and unusual dizziness. After ruling out other causes, management suspected indoor chemical pollution, likely made worse by a failing ventilation system.
We immediately dispatched a team of technicians specializing in industrial HVAC systems for a rapid on-site response. Upon arrival, our preliminary indoor air quality assessment confirmed elevated levels of volatile organic compounds (VOCs), emitted by the solvents used in the production process.
Technical diagnosis: an undersized and poorly designed ventilation system
Our technicians quickly identified the root of the problem: the existing ventilation system was not only undersized for the amount of contaminants produced, but also poorly positioned, causing pollutants to recirculate instead of being effectively expelled.
The localized exhaust network didn’t reach the busiest production zones. Contaminated air was stagnating in work areas, drastically increasing the risk of occupational poisoning and violating workplace health and safety regulations.
A custom solution: installation of a high-performance chemical extraction system
To resolve the situation urgently, we proposed and installed a custom HVAC ventilation solution using industrial-grade equipment, including:
-
A Lennox IAQ-360 chemical extractor, with high capacity and activated carbon filters designed specifically for VOCs.
-
A complete rework of ducting with airflow reconfiguration to extract fumes right at the source.
-
Low-velocity supply grilles in sensitive zones to avoid blowing pollutants toward operators.
-
A gas detection system linked to an intelligent control panel, allowing for dynamic airflow adjustments.
The installation was completed in two business days, including sensor calibration, static pressure testing, and full commissioning.
Immediate and long-term results: restored comfort and safety
Less than 24 hours after activating the new system, employees stopped experiencing any of the troubling symptoms. Our sensors recorded an 87% reduction in VOC concentration in the critical work zones.
Thanks to this intervention, the company was able to:
-
Safely return all staff to work.
-
Avoid a temporary production shutdown.
-
Improve its compliance record with CNESST inspections.
-
Optimize HVAC energy use through intelligent flow control.
The importance of proper ventilation in industrial settings in Laval and beyond
This case is a powerful reminder: in many industrial environments across Laval, Montréal, Longueuil, the South Shore, and the North Shore, ventilation is still treated as an afterthought instead of a foundational pillar of workplace safety.
Common mistakes we see include:
-
Lack of a proper analysis of pollutant types.
-
Outdated or poorly maintained equipment.
-
Systems designed for thermal loads only, with no attention to chemical emissions.
At AirGreen, we always emphasize the need for a complete air quality assessment, especially in high-risk sectors.
Why choose AirGreen for your industrial HVAC ventilation needs
Our expertise goes far beyond installation. We provide:
-
On-site performance studies.
-
Specific recommendations tailored to the substances used in your facility.
-
Regular preventive maintenance, crucial for long-term system efficiency.
-
Integration of smart technologies, like adaptive airflow regulation, to track changes in pollution levels.
Every business is different, which is why our solutions are 100% custom-built, always compliant with regulations, and designed to protect your teams, your operations, and your reputation.
A real-world follow-up: the 30-day post-installation checkup
One month after the intervention, we conducted a follow-up site visit. The system was performing perfectly, and management signed on for an annual maintenance contract with semi-annual inspections for the chemical filters.
This follow-up shows not only the reliability of our installation, but also our long-term commitment to our clients.
Conclusion: an exemplary project, a business protected
In Laval, this company avoided a major health crisis thanks to AirGreen’s fast, specialized intervention. This case underscores how vital it is to have an experienced HVAC partner to assess, design, and install a system truly suited to the specific risks of an industrial environment.
Whether you run a workshop, factory, warehouse, or laboratory, don’t wait for a health emergency to act. Trust our team to assess your HVAC ventilation needs, and benefit from a durable, effective, and regulation-compliant solution.
Contact AirGreen today for a full work environment evaluation in Laval, Montréal, Longueuil, the South Shore or the North Shore.