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Scandale invisible : ces climatiseurs qui aggravent vos problèmes respiratoires sans que vous le sachiez
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Invisible Scandal: These Air Conditioners Are Worsening Your Respiratory Issues Without You Even Realizing It

A hidden threat in your living room? What indoor air quality experts are revealing about poorly maintained air conditioners in Montréal and surrounding areas

When we think of wall-mounted or central air conditioners, we usually picture that refreshing breeze on hot summer days. But behind this apparent comfort hides a major health concern that can silently grow: the deterioration of indoor air quality. At AirGreen, we’ve seen countless cases where clients in Montréal, Laval, Longueuil, the North Shore, and the South Shore suffered from persistent respiratory symptoms, never suspecting their air conditioner was the real culprit.

Why your air conditioner could be harming your respiratory health

A poorly maintained air conditioner acts like a magnifier of indoor pollutants. Dust, mold, spores, dust mites, bacteria… all of these allergens can build up inside filters and ductwork, only to be spread through every room in your home. The result? Worsening allergies, asthma, and chronic respiratory issues.

Real-life case study: One family’s experience in Laval

Last June, we were called urgently to a family home in Chomedey, Laval. The two children were suffering from severe allergies, and their condition had significantly worsened with the onset of heat. Through a comprehensive HVAC system audit, our team discovered that the old wall-mounted air conditioner, in place for over 10 years, had dangerously high mold levels in the condensation tray.

The solution AirGreen provided:

  • Replacing the unit with a FUJITSU KZAH Wall-Mounted Heat Pump | 12,000 BTU | R-32, known for its excellent air filtration performance

  • Adding a secondary HEPA filter

  • Implementing a complete annual HVAC maintenance plan

Result: an 80% reduction in reported allergy symptoms within 3 weeks.

Symptoms to watch for: signs your air conditioner might be a threat

Here are some red flags you shouldn’t ignore:

  • Runny or stuffy nose, persistent coughing, throat irritation

  • Constant fatigue while indoors

  • Musty or moldy smell when turning on the unit

  • Appearance of stains on walls or around air vents

If these symptoms appear, an HVAC system inspection is urgently needed.

HVAC maintenance: what too many homeowners still overlook

Regular air conditioning maintenance is essential to avoid the spread of contaminants. Here are the key steps AirGreen recommends at least twice a year:

  • Cleaning or replacing air filters

  • Disinfecting coils and the condensate tray

  • Monitoring indoor humidity levels

  • Performing indoor air quality tests

  • Inspecting duct insulation

Choosing the right units: new generation air conditioners and heat pumps

The latest wall-mounted heat pumps and central air conditioners come with advanced filtration systems and energy-saving technologies. At AirGreen, we prioritize units that use R-32 or R-454B refrigerant, which are not only better for the environment but also more effective at maintaining clean indoor air.

Custom installation: the key to safety and performance

A poor installation can cancel out all the benefits of a good unit. That’s why, at AirGreen, every HVAC installation begins with:

  • A full thermal analysis of the home

  • Diagnosis of existing airflow

  • Precise BTU requirement calibration

Our goal: to ensure lasting comfort without compromising your family’s or employees’ health.

AirGreen: your health and comfort partner in Greater Montréal

For over 15 years, we’ve been helping residents and businesses in Montréal, Laval, Longueuil, the North Shore, and the South Shore to upgrade their HVAC systems. Our approach combines technical expertise, high-performance products, and exceptional customer service.

What sets us apart:

  • Fast service, even during peak heatwaves

  • Trusted brands like Fujitsu, Gree, Goodman, Bosch, Zephyr

  • Personalized, transparent advice

  • Full support for LogisVert grants and energy-efficiency programs

Conclusion: Don’t let your air conditioner compromise your health

The threat isn’t always visible. But a poorly maintained air conditioner can silently be the source of your daily discomfort. With the right HVAC installation, rigorous maintenance, and the expertise of a company like AirGreen, you can enjoy pure, healthy air in your home or workplace.

Your health starts with the air you breathe. Choose AirGreen.

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