Ce que vous ignorez sur les particules fines dans votre air intérieur (et comment votre VRE peut vous sauver)
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What You Don’t Know About Fine Particles in Your Indoor Air (and How Your ERV Can Save You)

An invisible danger threatens your health… and your air exchanger could be the solution

In the air we breathe every day in Montréal, Laval, Longueuil, on the North Shore or South Shore, a real yet invisible threat persists: fine particles (PM2.5 and PM10). These are microscopic dust particles, often coming from outdoors, but sometimes generated inside your home. They can penetrate deep into your lungs, affect your cardiovascular and respiratory health, and silently reduce your quality of life without you even realizing it.

At AirGreen, we install smart air exchangers (ERV/HRV) that do far more than ensure good ventilation. They act as a true barrier against fine particles, thanks to high-performance filters and controlled air renewal—essential for a healthy and safe indoor environment.

What are fine particles and why are they dangerous?

Fine particles (PM) refer to suspended elements in the air, often invisible to the naked eye, but capable of infiltrating deep into the body. They originate from outdoor pollution (traffic, wood heating, industries), but also from indoor activities (cooking, candles, cleaning, etc.).

Health effects:

  • Irritation of the respiratory tract

  • Worsening of asthma or allergies

  • Increased risk of cardiovascular diseases

  • Chronic fatigue and frequent headaches

In poorly ventilated homes, these particles build up. Closed windows in winter, household products, or even an inefficient kitchen range hood amplify the issue. That’s where installing an energy recovery ventilator (ERV) becomes a crucial solution.

How does an ERV fight fine particles?

An ERV (energy recovery ventilator) is a device installed within your HVAC system that extracts stale air and replaces it with fresh air, all while preserving the thermal energy.

Its concrete advantages against PM:

  • Filtration of incoming air thanks to high-efficiency filters (MERV 13+ recommended)

  • Constant evacuation of indoor pollutants, reducing their concentration

  • Air renewal up to 8 times a day, depending on the configuration

  • Humidity control, a factor that either worsens or reduces particle dispersion

At AirGreen, we always recommend ERV models equipped with HEPA or advanced MERV filters, especially suited for urban areas like Montréal or Laval, where heavy traffic and industrial activity increase pollutant concentrations.

Case study: Installing an ERV in a home in Longueuil

Last winter, our team was called in to install a Venmar AVS HRV ECM ERV in a single-family home in Longueuil. The homeowners were complaining about recurring headaches, constant allergies, and a persistent smell in the house.

AirGreen diagnosis:

  • Indoor fine particle levels 40% higher than the recommended standard

  • Presence of stagnant humidity in the basement ducts

  • No prior mechanical ventilation system in place

Solution implemented:

  • Installation of a Venmar ERV with MERV 13 filter

  • Integration into the central HVAC system with zoned ventilation

  • Customer training on filter changes and HVAC maintenance schedule

Result:

  • 80% reduction in fine particles within 3 weeks

  • Immediate improvement in sleep and disappearance of headaches

  • Indoor air measured to be cleaner than the outside air in the neighborhood

What you can do at home (even without an ERV, for now)

Even before installing an air exchanger, here are some helpful habits to limit fine particles:

  • Avoid aerosol cleaning products

  • Quickly ventilate after cooking

  • Use a HEPA portable air purifier

  • Avoid smoking or using scented candles

But in the long run, nothing replaces a professionally installed air exchanger. At AirGreen, we evaluate each home individually to recommend the ERV unit suited to your needs, your existing HVAC system, and your region.

Why choose AirGreen for your air exchanger?

Because we don’t just install equipment. We advise, diagnose, integrate, and support our clients over the long term.

Our commitments:

  • Free indoor air quality analysis before every installation

  • Energy Star-certified equipment eligible for local grants

  • Technicians trained to the latest ventilation and HVAC standards

  • Personalized maintenance follow-up after installation

Available grants for ERV installation

There are various grants available for air exchangers, notably through Hydro-Québec’s LogisVert program or municipal initiatives. Our advisors can quickly check your eligibility for subsidies and guide you toward a subsidized, cost-effective, and eco-friendly solution.


In conclusion: Breathe better, live better

Fine particles are silent but harmful. Too often overlooked, they contribute to reduced quality of life and chronic illnesses. Installing a properly sized and well-maintained ERV is one of the best investments you can make for your health and your family’s.

At AirGreen, we believe clean air should never be a luxury. We proudly serve Montréal, Laval, Longueuil, the North Shore and South Shore, offering custom HVAC solutions that are effective and long-lasting.


Contact us today for a free indoor air analysis and discover how an air exchanger can transform your daily life.

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