An AirGreen installation on the North Shore that clearly shows the real impact on indoor air quality
On the North Shore of Montréal, in a single-family home located in Blainville, our AirGreen team recently completed a HVAC installation of a floor-ceiling unit at the request of a couple concerned about the air quality inside their home. This project wasn’t just about improving thermal comfort, but a true commitment to better indoor air quality and increased energy performance. Thanks to meticulous planning, a smart choice of equipment, and the expertise of our certified technicians, this installation delivered measurable and lasting results.
Why choose a floor-ceiling unit? A strategic decision for homes on the North Shore
Floor-ceiling units are often underestimated in residential projects, even though they offer exceptional versatility, especially in homes with low ceilings or complex architectural layouts. In the case of this residence in Blainville, several factors made this solution ideal:
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Limited wall space prevented a classic wall-mounted installation
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Low ceiling height in certain areas
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Need for even air distribution across a large open space
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Objective: Improve air quality and reduce humidity levels
We selected a Daikin floor-ceiling unit, model FNAQ24AV1, with a capacity of 24,000 BTU, featuring advanced filtration and compatible with smart thermostats. This model is also eligible for the Hydro-Québec LogisVert grant program, allowing clients to receive up to $1,704, which strongly influenced their investment decision.
Installation process: AirGreen expertise focused on precision
The work was completed in a single full day, broken down into key steps:
Preliminary technical assessment
We conducted a full evaluation of the home, including:
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Air quality test to establish a baseline (CO2 levels, VOCs, relative humidity)
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Analysis of existing airflow and zones with stagnation or drafts
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Identification of optimal installation points to ensure even distribution
Installing the unit
The unit was installed in the main family room, a high-traffic area that had previously been difficult to heat properly.
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Mounted to the ceiling with anti-vibration suspension
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Connected to existing refrigerant lines
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Integrated into the centralized control system (smart thermostat)
Final checks and post-installation measurements
After the system was activated, we conducted new air quality tests:
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37% reduction in VOCs measured in the room within 48 hours
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Improved air circulation confirmed by airflow meter readings
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Humidity stabilized at 45%, the ideal level to prevent mold and discomfort
Customer testimonial: real, noticeable satisfaction
“We noticed a big improvement in comfort from the very first evening. The air feels fresher, less humid, and our kids are sleeping better. Thanks to the AirGreen team for their meticulous work and professionalism!”
– Marie-Claude & Thierry, Blainville
Impact on indoor air quality: data and observations
Here are the comparative results before and after installation:
| Indicator | Before installation | After installation (72h) |
|---|---|---|
| CO₂ level (ppm) | 1,120 | 670 |
| Relative humidity (%) | 62% | 45% |
| Volatile Organic Compounds | 360 µg/m³ | 225 µg/m³ |
| Average temperature (°C) | 19.5 °C | 21 °C |
| Draft zones | 5 zones | 1 residual zone |
These results clearly demonstrate the effectiveness of a floor-ceiling unit that’s well selected and properly installed by professionals like AirGreen. The drop in CO₂ and VOC levels indicates better ventilation, while the reduction in drafty areas significantly improves overall comfort.
Practical tips: why consider this type of installation for your home?
Who is this type of unit ideal for?
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Homeowners with limited wall space
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Split-level homes or homes with low ceilings
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Home offices where air quality is crucial
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Owners looking for a clean, discreet aesthetic
Key things to look out for when choosing a floor-ceiling unit:
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Correct BTU sizing
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Check eligibility for available grants
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Noise level of the unit when operating
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Compatibility with smart home systems
Why trust AirGreen for this type of installation on the North Shore?
At AirGreen, we are first and foremost a team driven by improving residential comfort and energy efficiency. Every project is approached with precision, transparency, and professionalism. For this installation in Blainville, our process was personalized at every stage:
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Thorough analysis of customer needs
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Selection of the optimal equipment (Daikin 24,000 BTU)
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Scientific measurements before and after to ensure concrete results
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Responsive after-sales service and performance monitoring
We’ve already installed similar units in Terrebonne, Mascouche, Laval, and Boisbriand, each time delivering clear improvements in indoor air quality and thermal comfort.
Conclusion: A real improvement in daily quality of life
This floor-ceiling unit installation on the North Shore not only enhanced the thermal comfort of the Blainville family—it also led to a tangible improvement in indoor air quality, backed by real measurements, while providing an aesthetic, high-performing, and energy-efficient solution. At AirGreen, we truly believe that every installation can transform your daily life—when it's well designed and executed with care.
Still not sure? Get in touch with us!
We’re here to guide you and offer a full assessment of your home or business. Whether you’re located in Montréal, Laval, Longueuil, on the North Shore or the South Shore, we’re ready to visit and provide the most suitable HVAC solution for your needs.