Breathing clean air in your own home isn’t a luxury—it’s a vital necessity. And yet, countless households in Montréal, Laval, Longueuil, on the North Shore and the South Shore are unaware that the air they breathe daily is filled with harmful particles, mold spores, or invisible pollutants. At AirGreen, we regularly meet families who are stunned to discover how much indoor air quality can impact their health. In this article, we’re sharing authentic testimonials from clients who, thanks to the installation of a high-performance air exchanger, have transformed their daily lives and reclaimed a healthy home environment.
The day everything changed: a Laval client shares her story
Mrs. L., living in a single-family home in Laval, had always suffered from frequent migraines, unexplained fatigue, and morning congestion. Doctors couldn’t find anything unusual. It wasn’t until a general contractor suggested having her ventilation system inspected that she discovered the true extent of the problem.
“The air quality test done by AirGreen revealed high levels of CO2, stagnant humidity, and fine dust. I was shocked. We were literally breathing toxic air every day without knowing it.”
AirGreen quickly proposed a suitable solution: installation of a Venmar AVS Nuaire air exchanger with heat recovery. In less than two weeks, the air quality drastically improved. Mrs. L.’s symptoms disappeared. The home’s comfort was completely transformed.
The silent dangers of poorly ventilated indoor air
Stale indoor air can have serious health consequences: respiratory problems, allergic reactions, chronic fatigue, eye and throat irritation. Yet these symptoms are often attributed to other causes. At AirGreen, we’ve documented several cases where installing a controlled mechanical ventilation (CMV) system ended years of discomfort.
Case study: Montréal, Plateau-Mont-Royal – A family saves their child’s health
In a condo located in Plateau-Mont-Royal, a young family contacted AirGreen after their 4-year-old son developed asthma. Their wall-mounted AC unit was operating without proper ventilation, and the indoor air was especially humid.
“We never imagined that a lack of ventilation could trigger asthma. AirGreen found mold buildup inside the walls, caused by the absence of a central air exchanger.”
We installed a Lifebreath RNC 155 air exchanger with a HEPA filter and humidity control system. A few weeks later, the asthma attacks decreased, and the family was finally able to breathe easy again.
Why indoor air is often more polluted than outdoor air
Contrary to popular belief, even in urban areas, outdoor air is often less polluted than indoor air. Inside, pollutants remain trapped: cooking smoke, cleaning products, pet dander, dust, volatile organic compounds (VOCs)… it all builds up. Without a high-performance ventilation system, it’s impossible to properly renew the air.
Our recommendation: air exchangers with heat recovery
At AirGreen, we recommend air exchangers with heat recovery (HRV) for their energy efficiency and ability to maintain healthy air year-round, even in winter. Here are some of the models we install most often:
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Venmar AVS HRV – Excellent thermal efficiency, quiet and reliable.
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Lifebreath HRV-RNC 200 – Ideal for large homes, high-performance filter.
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Fantech Flex 100H – Compact, perfect for apartments or smaller condos.
Professional installation by AirGreen: precision, expertise, and personalization
Every home is unique. That’s why our technicians first conduct a complete air quality assessment, analyze the layout of your space, and evaluate the specific needs of the occupants. Then, we provide a tailored solution:
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Selecting the right air exchanger model.
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Installation compliant with CSA and Novoclimat standards.
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Precise airflow calibration and airtightness testing.
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Customer training for system maintenance.
Common mistakes to avoid when choosing an air exchanger
Here are some of the pitfalls we often see among new clients:
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Choosing an undersized model for the size of the home.
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Installing the air exchanger without balancing the intake and exhaust airflow.
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Neglecting to clean the filters, which quickly reduces performance.
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Ignoring specific needs (allergies, excess humidity, etc.)
At AirGreen, we educate every client on how to properly maintain their air exchanger to maximize its long-term benefits.
Testimonial from a property manager in Longueuil
Mr. D., who manages several residential buildings in Longueuil, had received numerous complaints about stagnant odors and condensation on windows. After a full inspection, we recommended installing centralized energy recovery air exchangers in the hallways and basements.
“The AirGreen team met the deadlines, worked cleanly, and since then, the complaints have stopped. The atmosphere in the building is much more pleasant.”
Why trust AirGreen
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Proven experience installing air exchangers across Greater Montréal.
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Certified technicians, courteous and highly skilled.
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Trusted products, durable and eligible for available grants.
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Personalized follow-up, before, during, and after installation.
Available grants for air exchanger installation
Several financial assistance programs can help cover part of the cost:
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LogisVert – Hydro-Québec
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Rénoclimat Program
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Chauffez Vert Program
Our advisors provide free support to help you maximize your financial return.
The air you breathe is not a minor detail
Breathing clean air means living better. At AirGreen, we’ve seen lives completely transformed thanks to better ventilation. If you’re experiencing unexplained discomfort at home, if your children are frequently sick, or if you notice signs of moisture, don’t wait.
We serve Montréal, Laval, Longueuil, the North Shore and the South Shore. Our experts are ready to advise you and turn your home into a healthy, breathable space.
Contact us today for a free evaluation of your indoor air quality.