Stale nighttime air: the invisible consequences of a dirty air conditioner
At AirGreen, we perform deep cleaning of wall-mounted air conditioners and central systems every week in homes across Montréal, Laval, Longueuil, the North Shore, and the South Shore. While many clients think about servicing their systems for energy-saving reasons, very few realize the direct impact a dirty air conditioner can have on the quality of their sleep.
Breathing clean air at night is essential for restorative sleep, but when your unit’s filters, coils, or drain pans are clogged, the air you breathe could be loaded with bacteria, mold, fine dust, and allergens. And that can literally sabotage your nights.
Why does a dirty air conditioner disrupt your sleep?
A higher concentration of pollutants
Whenever we carry out HVAC maintenance, we often find layers of allergens, dead skin cells, pet hair, and mold spores in our clients’ filters. These particles are released back into the air every time the unit is turned on. At night, your breathing slows, your airways become more sensitive, and prolonged exposure to these contaminants can lead to:
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Frequent nighttime awakenings
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Nasal congestion
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Asthma attacks or allergy flare-ups
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Feeling tired in the morning
Poor humidity regulation
A clogged or poorly maintained wall-mounted air conditioner can no longer regulate humidity properly. This can create a feeling of thermal discomfort—air that’s too dry dries out your throat, while air that’s too humid encourages bacterial growth.
Real-life testimonial: service call in Rosemère
We were recently contacted by a family in Rosemère, on the North Shore, whose children were waking up congested every night. Upon inspection, we discovered that their Gree wall-mounted air conditioner, installed four years ago, had never been cleaned. The condensate pan was blocked with organic buildup, and mold was growing near the fan.
We performed a complete cleaning: disassembled the indoor unit, pressure-washed the coil, applied antibacterial treatment, replaced the filter, and sanitized the drain pan. The results were immediate: better air quality, peaceful sleep, and a fresh scent back in the room.
How to tell if your air conditioner is harming your sleep
Watch out for these warning signs:
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The air in your bedroom feels heavy or humid even with the AC on
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You wake up with a dry throat or stuffy nose
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The indoor unit smells musty or dusty
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You experience eye or throat irritation upon waking
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The AC is noisy or blows air unevenly
Immediate benefits of regular HVAC cleaning
At AirGreen, we recommend a professional HVAC cleaning at least once a year, ideally in spring or fall. Here’s what you gain by calling us:
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Better sleep quality, thanks to clean and fresh air
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Reduced allergy and respiratory symptoms
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Up to 30% lower energy consumption
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Extended lifespan of your system
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A quieter, more efficient air conditioner without bad smells
What’s included in our HVAC cleaning service?
Our certified AirGreen technicians operate with precision and professionalism throughout Montréal, Laval, Longueuil, the North Shore, and the South Shore to perform:
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Deep cleaning of the evaporator coil and fan
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Degreasing and disinfecting of the filters
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Cleaning the condensate pan and drain line
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Applying antifungal and antibacterial treatment
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General system performance check
What our clients say about us
Ms. Lafontaine from Boucherville called us after suffering from persistent nighttime coughing. After our visit, she told us:
"I never imagined that cleaning my AC would make such a difference. My room smells fresher, I sleep through the night, and I finally have energy again."
Mistakes to avoid
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Thinking maintenance is only necessary when the unit breaks down
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Relying solely on washable filters without checking the rest of the unit
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Hiring a service that isn’t HVAC-specialized
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Putting off cleaning for several years
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Believing air fresheners can eliminate mold
Why choose AirGreen to clean your air conditioner?
Our expertise comes from years of hands-on experience, in every neighborhood of the Greater Montréal area, serving both residential and commercial clients. We know every brand, every model, every setup. We provide fast, precise, and lasting interventions, tailored to your specific needs.
Choose comfort at night, health, and performance. At AirGreen, we believe clean air starts with a proper cleaning.