A Custom Ventilation Installation for a High-Risk Laboratory in Longueuil
In a context where health safety is critical—especially in sensitive environments like biomedical laboratories—installing a high-performance ventilation system becomes an absolute priority. At AirGreen, we were recently tasked with a project in a Longueuil laboratory specializing in high-risk pathogen analysis. This mission allowed us to apply our expertise in HVAC ventilation in a particularly demanding setting, with strict protocols for filtration, negative pressure, and viral contamination prevention.
The Stakes of Ventilation in a Biosafety Environment
Why is Extreme Ventilation Essential in a Laboratory?
The presence of highly contagious viruses in a confined environment demands very strict biosafety standards. Contaminated air must be immediately extracted, filtered, and replaced by clean air that is tightly controlled for temperature, humidity, and pressure. A design or maintenance flaw can jeopardize the entire safety chain, exposing staff and samples to serious risks.
It was in this context that the client reached out to us, concerned about the inconsistent performance of their outdated ventilation system, which could no longer maintain proper differential pressure between high-risk zones.
Objectives of Our Intervention:
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Ensure constant air renewal with a rate of 18 to 20 air changes per hour
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Install a negative pressure system in sensitive zones
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Integrate dual HEPA filtration on intake and exhaust
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Guarantee 24/7 uninterrupted operation
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Provide automated, smart airflow management
HVAC Solutions Deployed by AirGreen in Longueuil
Technical Analysis and On-Site Diagnosis
Before any installation, our technical team visited the site for a comprehensive inspection of the existing infrastructure. We created a map of the airflow, identified weaknesses, and analyzed the building layout. The result: several zones showed non-compliant depressurization, and the existing ductwork could not handle effective filtered air distribution.
Installation of a High-Performance Centralized Ventilation System
To meet the client’s needs, we recommended installing a centralized ventilation system with energy recovery (ERV) combined with HEPA 13 modules, linked to pressure sensors and fine particle detectors. The entire system is controlled by a smart controller with a digital interface located in the lab’s supervision room.
Technical Details of the Equipment Installed:
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Brand: Lennox®
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Model: VRE Bioguard Pro
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Airflow: 3,000 CFM
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Filtration: dual HEPA 13 + MERV 15 pre-filter
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Automated management via BACnet/IP
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Installation of differential pressure switches in critical zones
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Connected CO2 and humidity sensors
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Integrated backup system powered by UPS in case of outage
Smart Airflow Management Across All Lab Zones
Thanks to our solution, each area of the lab (prep, storage, analysis, decontamination) now benefits from independent airflow control, with positive or negative pressure depending on the zone. This setup allows for containment of pathogens, prevention of cross-contamination, and permanent safety for employees.
Results: Increased Safety and Full Regulatory Compliance
Since commissioning the new system, the client has observed:
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Perfect stability of differential pressures
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A 95% reduction in airborne particles
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Full compliance with CSA Z317.2-22 standards on healthcare facility ventilation
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Improved energy efficiency thanks to the integrated heat recovery system
AirGreen Expertise Serving Critical Environments
At AirGreen, we understand that every ventilation project—especially in environments as sensitive as a high-containment laboratory—must combine technical rigor, regulatory compliance, and long-term reliability.
With our experience in complex HVAC environments across the Montérégie region and the South Shore, we were able to rise to this challenge with professionalism, speed, and transparency.
Our Added Value:
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A team of certified technicians trained in biosafety
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A rigorous post-installation follow-up, with quarterly preventive maintenance
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A custom design tailored to architectural and sanitary constraints
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Local technical support in Longueuil for 7-day emergency response
A Ventilation Project in Longueuil? Trust AirGreen
Whether you manage a laboratory, clinic, pharmacy, or any other facility requiring strict air quality control, we have the right solution. Every project is handled with the same level of precision, transparency, and commitment.
Contact us today for a free evaluation of your HVAC system in Longueuil, on the South Shore, or anywhere in Greater Montreal.