A long-term solution for cleaner air in homes across Montréal, Laval, Longueuil, North Shore, and South Shore
Dust gets everywhere. It builds up on furniture, inside ducts, on clothes—and even in our lungs. But what many homeowners don’t realize is that your ventilation system plays a key role in how much dust accumulates in your home.
At AirGreen, we’ve carried out hundreds of HVAC installations and service calls in Montréal, Laval, Longueuil, as well as the North and South Shores, and we’ve noticed a consistent pattern: homes with proper ventilation have significantly less dust. Here’s why—and how you can benefit from it.
Why does dust keep coming back so quickly in your home?
You clean, you vacuum, and yet... the dust is back just a few days later. This is often due to:
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Poor air circulation, preventing the removal of fine particles
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Worn or clogged HVAC filters that fail to trap pollutants
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No air exchanger, meaning stale indoor air isn’t replaced with clean outdoor air
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Dirty ductwork, pushing dust back into every room
Dust isn’t just a visual annoyance. It can carry allergens, dust mites, chemical residues, and worsen respiratory issues.
The key role of a good ventilation system
A controlled mechanical ventilation system (HRV or ERV) is essential for managing indoor air quality. Unlike simply opening a window, an air exchanger:
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Extracts stale, particle-heavy air
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Brings in fresh, filtered air from outside
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Maintains balanced pressure, preventing dust from being drawn in through walls or cracks
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Actively filters contaminants before they spread throughout your home
A good air exchanger acts as a barrier against dust. It won’t eliminate it completely, but it will greatly reduce it.
AirGreen case study: Home in Laval (Fabreville)
A couple contacted us, frustrated with constant dust despite regular cleaning. They live in a well-insulated 1990s bungalow with no air exchanger.
On-site findings:
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No centralized air extraction system
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Dirty heating ducts
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Minimal filtration on the electric heating system
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Indoor humidity too low (28%): dry air makes dust more airborne
AirGreen solution:
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Installed a Lifebreath Max Series HRV with MERV 13 filters
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Complete duct cleaning and added exhaust grilles in key areas
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Integrated a central humidifier to stabilize humidity at 40%
Results after 3 weeks:
Less visible dust, more pleasant air, improved overall comfort. The client even noticed a reduction in morning sneezing.
How to know if your home is poorly ventilated
Here are a few signs that may indicate poor ventilation or an inefficient HVAC system:
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Dust reappears within 24 to 48 hours of cleaning
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Stale odors persist even after airing out
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Black marks around air vents
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Frequent allergies or respiratory discomfort
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Indoor humidity is too low or too high without automatic regulation
If you notice any of these signs, it’s time to have your ventilation system inspected.
Our recommendations for reducing dust in the long term
✔ Have your ventilation ducts inspected and cleaned every 3 to 5 years
✔ Replace HVAC filters every 3 to 6 months, depending on quality and usage
✔ Choose high-efficiency filters (minimum MERV 11, ideally MERV 13)
✔ Install a high-performance air exchanger to renew air without heat loss
✔ Maintain indoor humidity between 35% and 45%
✔ Avoid cleaning products that contain volatile organic compounds (VOCs)
The equipment we recommend at AirGreen
We regularly install ventilation systems that combine performance, energy efficiency, and comfort:
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Lifebreath Max Series: high efficiency, quiet, optional HEPA filters
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Venmar AVS E15 ECM: ECM motor, automatic airflow adjustment
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Aldes InspirAIR: smart sensors, excellent value for money
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Vanee AI Series: ideal for large homes, smart home compatible
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Zehnder ComfoAir: European technology, ultra-efficient, compact design
All of these systems are eligible for LogisVert, Rénoclimat, or Chauffez Vert grants, depending on the project profile and region (Montréal, Laval, Longueuil, North Shore, South Shore).
Why trust AirGreen?
✔ We provide a free in-home evaluation, with no obligation
✔ Our technicians are certified and specialized in residential ventilation
✔ We help you obtain available government grants
✔ Every project is personalized: no one-size-fits-all solutions
✔ Fast service and follow-up after installation
Tired of dusting every other day?
Call on AirGreen for a customized, long-lasting ventilation solution, tailored to your needs.