
Summer in Ottawa brings sunshine, warmer temperatures, and unfortunately, seasonal allergens. With more people spending time indoors and running their air conditioning, indoor air quality (IAQ) becomes a bigger concern. Pollens, mold spores, and humidity can all affect the air you breathe inside your home. That is why understanding how your HVAC system helps protect your air quality is essential.
Summer IAQ Challenges in Ottawa
When summer arrives, so do seasonal allergens like pollen and mold spores. Combine that with increased use of air conditioning, and it is easy to see why indoor air quality matters.
Many homeowners do not realize that running their AC means windows stay closed, so the air inside can become stale or contaminated if the system is not properly maintained.
Breathing clean air indoors is especially important for families with allergies, asthma, or other respiratory concerns.
Many homeowners do not realize that running their AC means windows stay closed, so the air inside can become stale or contaminated if the system is not properly maintained.
Breathing clean air indoors is especially important for families with allergies, asthma, or other respiratory concerns.
Role of HVAC in IAQ
Your HVAC system plays a critical role in maintaining healthy indoor air. Modern HVAC equipment does more than just control temperature. It also:
- Brings in fresh air through ventilation
- Filters out dust, pollen, and airborne particles
- Controls indoor humidity levels to help prevent mold growth
A properly maintained HVAC system keeps air circulating, removes contaminants, and helps reduce allergy triggers in your home. That is why homeowners in Ottawa rely on their HVAC systems not just for comfort, but for cleaner, healthier indoor air.

Filter Selection for Allergies
One of the most effective ways to improve IAQ is by choosing the right filter for your HVAC system. Not all filters are created equal. Look for:
- MERV rated filters: The higher the MERV rating, the more airborne particles the filter captures
- HEPA filters: High Efficiency Particulate Air filters can trap even the smallest allergens, ideal for allergy sufferers
At Ercan’s Heating and Cooling, we offer a range of high-MERV filters and indoor air quality products designed to reduce allergens and improve the air you breathe. You can explore these options on our Air Quality Services page.
Air Purifiers and UV Lights
For enhanced protection, homeowners can go beyond standard filters. Consider adding:
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Standalone air purifiers for targeted rooms
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UV sterilization systems installed in your HVAC to kill bacteria, viruses, and mold
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REME HALO ionizers, a popular whole-home solution that neutralizes airborne pollutants and allergens
These advanced products work alongside your HVAC system to create cleaner, healthier indoor air for your entire home.
Duct Cleaning and Sealing
Your air ducts are the hidden pathways for air throughout your home, but they can also collect dust, allergens, and even mold over time. Regular duct cleaning helps prevent these pollutants from circulating.
In addition to cleaning, sealing your ducts can significantly improve your HVAC efficiency and IAQ. According to Energy Star, sealing leaky ducts can improve your system's efficiency by up to twenty percent, reducing dust infiltration and improving overall air quality.
In addition to cleaning, sealing your ducts can significantly improve your HVAC efficiency and IAQ. According to Energy Star, sealing leaky ducts can improve your system's efficiency by up to twenty percent, reducing dust infiltration and improving overall air quality.
Tips for Better IAQ
Maintaining good indoor air quality during Ottawa’s summer months requires a few simple steps:
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Change air filters monthly to keep dust and allergens under control
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Use humidity control features to reduce excess moisture
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Clean vents and registers regularly
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Vacuum frequently, especially if you have pets
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Schedule regular HVAC maintenance to ensure your system is clean and operating efficiently
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Run air purifiers or UV systems for extra protection
By combining these practices with professional HVAC care from Ercan’s, you can breathe easier all summer long.
Ready to improve your indoor air quality?
Contact Ercan’s Heating and Cooling to learn more about our Air Quality Services and schedule an IAQ consultation today.
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