Real stories that prove how a well-installed air exchanger can truly transform lives
At AirGreen, we believe that indoor air quality is far more than just a comfort — it’s a key factor for health, well-being, and daily productivity. Too often overlooked, residential ventilation plays a decisive role in preventing mold, controlling humidity, and improving overall quality of life. Thanks to our hands-on experience with hundreds of projects across Greater Montréal, we’ve witnessed situations completely turn around thanks to the installation of a high-performance air exchanger.
Today, we’re sharing three true stories from our interventions in Montréal, Laval, and Longueuil, that highlight the crucial importance of a properly designed and installed ventilation system.
A moldy basement in Montréal turned into a healthy playroom
Context: chronic humidity and persistent odors in a Rosemont home
When this family living in the Rosemont neighborhood of Montréal called us, their basement was mostly used for storage — no one could stay there long without feeling uncomfortable. The high humidity was causing visible mold on the drywall, and a stale smell lingered. The humidity level measured was 76% during the summer.
Our intervention: installation of a Venmar AVS® N Series HRV air exchanger
We recommended a heat recovery ventilator (HRV), the Venmar AVS® N Series 160 CFM, a model perfectly suited for single-family homes with finished basements. The installation was completed in one day, with ducting routed to key basement areas, the living room, and the bathroom.
Results after 3 weeks
Three weeks post-installation, humidity had stabilized at 48%, the odors had completely vanished, and the basement was now being used as a playroom for the children. The homeowner told us:
"We finally got back 30% of our house thanks to ventilation. We only wish we had done it sooner."
A brand-new condo in Laval with signs of stale air: headaches, fatigue, discomfort
Context: new construction but poorly balanced ventilation
A young couple had just moved into a brand-new condo in the Chomedey sector of Laval. Quickly, they started experiencing chronic fatigue, frequent headaches, and a heavy feeling in the air — despite having a central ventilation system in place. After inspection by our technicians, we discovered the system was undersized, poorly balanced, and didn’t provide adequate air renewal for the unit’s layout.
Our solution: air exchanger with integrated HEPA filter
We replaced the existing unit with a Lifebreath RNC155 air exchanger with HEPA filter, a high-performance model with digital ventilation controls and boost mode capabilities. We also rebalanced the airflow between rooms for proper pressure regulation.
Immediate impact on well-being
Within days, symptoms began to fade. The couple noticed the air felt “lighter,” there was no more excessive dust, and they felt more energized. Over time, they also observed a drop in their energy use, thanks to the unit recovering heat from exhausted air.
A daycare in Longueuil saved from closure notice by the regional health board
Context: high CO₂ levels and unsanitary air complaints
A home-based daycare in Longueuil, on the South Shore, contacted us urgently after receiving a closure notice from the regional CIUSSS. An inspection had revealed CO₂ levels above 1500 ppm in the nap and activity areas — far beyond acceptable limits for young children.
Rapid action plan and installation of a high-efficiency air exchanger
We conducted an indoor air quality assessment, then installed an Aldes InspirAIR Top 155 air exchanger, known for its high energy efficiency and ultra-quiet operation — critical in a child-focused environment. The unit was integrated discreetly, with smart controls and ductwork customized for high-use zones.
Outcome: license renewed and optimal comfort
Follow-up inspection showed CO₂ levels had dropped to a stable 600 ppm, well below the danger threshold. Educators immediately noticed improved comfort and freshness in the air. Thanks to this quick, efficient installation, the daycare renewed its license without conditions.
What we learned: clean air is essential — and achievable
These three stories all point to the same truth: a proper air exchanger can completely transform a living or working space. Whether it’s eliminating mold, improving health, or meeting strict standards, our customized ventilation solutions adapt to every situation. At AirGreen, we don’t offer one-size-fits-all systems — we diagnose, analyze, and design tailor-made installations, backed by our field expertise throughout Greater Montréal, including the North Shore, South Shore, Laval, and Longueuil.
Why choose AirGreen for your ventilation system
-
Certified team for residential, commercial, and institutional ventilation
-
Access to top brands on the market: Venmar, Aldes, Lifebreath, Broan, and more
-
Fast, clean installation that meets the highest standards
-
Free indoor air quality assessments available
-
Proven expertise with over 200 projects in Montréal and surrounding areas
Practical tips: how to know if you need an air exchanger?
Here are some signs your home or business might benefit from a new ventilation system:
-
Persistent odors or visible mold
-
Excessively high or low humidity levels
-
Stale air, frequent headaches
-
Rapid dust buildup
-
Foggy windows or condensation
In any of these cases, reach out to us for a free professional assessment. Our team will gladly offer you a customized solution adapted to your space.
AirGreen: your ventilation and air exchanger experts in Montréal
When you choose AirGreen, you’re choosing a local, transparent, and meticulous service, with honest advice and full support — from the quote to the installation. Our clients choose us for our listening skills, technical expertise, and sustainable solutions.
Do you live in Montréal, Laval, Longueuil, on the North Shore or the South Shore? Feeling discomfort or suspect your indoor air quality isn’t optimal?
Join the many families and businesses who trust us: call AirGreen today, and transform your daily life with a ventilation system that’s efficient, effective, and built to last.